Preface |
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xi | |
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1 | (10) |
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3 | (8) |
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3 | (1) |
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1.2 Past and Present of Sparse Antenna Arrays |
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3 | (1) |
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1.3 Advantages and Limitations of Sparse Array |
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4 | (1) |
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1.4 Application Scenario for Sparse Array Antennas |
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5 | (1) |
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1.5 Organization of the Book |
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6 | (5) |
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6 | (5) |
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PART II Antenna and Antenna Arrays |
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11 | (50) |
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13 | (18) |
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13 | (1) |
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2.2 Broad Classification of Antennas |
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14 | (2) |
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2.3 Antenna Characterization |
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16 | (4) |
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20 | (2) |
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2.5 Antenna Design Techniques |
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22 | (1) |
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23 | (3) |
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26 | (3) |
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2.8 Summary of the Chapter |
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29 | (2) |
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30 | (1) |
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31 | (30) |
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31 | (1) |
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32 | (1) |
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3.3 Antenna Array Electromagnetics |
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33 | (5) |
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3.3.1 Linear Antenna Array (LAA) |
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33 | (3) |
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3.3.2 Planar Antenna Array (PAA) |
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36 | (2) |
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3.4 Phased Array Antennas (PhAA) |
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38 | (4) |
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3.4.1 Principle of Beam Steering |
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39 | (3) |
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3.5 Antenna Array Design Constraints |
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42 | (19) |
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3.5.2 Grating Lobes Mechanism |
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42 | (2) |
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3.5.2 Mutual Coupling Phenomenon |
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44 | (5) |
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3.5.3 Antenna Array Design Techniques |
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49 | (6) |
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3.5.4 Practical Constraints in Regular or Dense Phased Array Antennas |
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55 | (2) |
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57 | (4) |
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PART III Electromagnetics of Sparse Array Antennas |
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61 | (221) |
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4 Generalized Expression for Directivity |
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63 | (46) |
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63 | (3) |
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4.2 Generalized Exact Analytical Expression for Directivity |
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66 | (12) |
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71 | (7) |
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4.3 Approximate Expression for Directivity |
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78 | (7) |
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4.4 Concentric Ring Antenna Arrays (CRAs) |
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85 | (13) |
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4.4.1 Concentric Ring Sparse Array (CRSA) |
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90 | (5) |
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4.4.2 Effect of Rotation on CRSA |
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95 | (3) |
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98 | (11) |
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98 | (3) |
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Appendix 4A Derivation of (4.14) |
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101 | (2) |
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Appendix 4B Derivation of (4.21) |
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103 | (6) |
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5 Synthesis of Linear Sparse Array Antennas |
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109 | (52) |
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109 | (1) |
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109 | (5) |
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5.2.1 A Brief History of the Synthesis of LSAAs |
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111 | (2) |
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5.2.2 Sparse Versus Dense Linear Array Antennas |
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113 | (1) |
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5.3 Numerical Studies on LSAAs |
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114 | (9) |
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5.3.1 An LSAA with 60 Grid Locations (d = X/2) |
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114 | (4) |
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5.3.2 The Effect of Mutual Coupling and the Choice of the Array Element |
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118 | (1) |
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5.3.3 The Relationship Between SLL and the Number of Elements |
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119 | (1) |
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5.3.4 Relationship Between the Thinning Ratio (Fill Factor) and the Number of Elements |
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119 | (1) |
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120 | (3) |
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5.4 ADT for the Synthesis of Nonuniform LSAA |
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123 | (16) |
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5.4.1 Usage of ADT for the Array Synthesis |
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123 | (3) |
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5.4.2 Numerical Case Studies |
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126 | (9) |
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5.4.3 Oversized Linear Sparse Array Antennas |
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135 | (3) |
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5.4.4 Highly Sparse Linear Antenna Array (dno = IX) |
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138 | (1) |
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5.5 Synthesis of Taylor-Like Distribution |
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139 | (17) |
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5.5.1 Design and Optimization Philosophy |
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142 | (4) |
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5.5.2 A 60-Element Linear Sparse Antenna Array (LSAA) |
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146 | (4) |
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5.5.3 Optimization of a 60-Element LSAA |
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150 | (3) |
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5.5.4 A 200-Element Linear Sparse Array Antenna (LSAA) |
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153 | (2) |
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5.5.5 A 3,600 (60 × 60) Element Planar Sparse Array Antenna (PSAA) |
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155 | (1) |
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156 | (5) |
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156 | (5) |
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6 Concentric Ring Sparse Array Antennas |
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161 | (44) |
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161 | (1) |
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6.2 Review of the Literature |
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162 | (1) |
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6.3 Types of Circular Sparse Arrays |
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163 | (6) |
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6.3.1 The Array Factor of CRAs |
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166 | (3) |
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6.4 Design Guidelines Framework |
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169 | (5) |
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6.4.1 First Term in (6.14) |
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170 | (1) |
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171 | (1) |
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6.4.3 Second Term in (6.14) |
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171 | (2) |
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6.4.4 Simplified Version of (6.14) |
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173 | (1) |
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174 | (1) |
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174 | (2) |
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6.6 Numerical Case Studies |
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176 | (19) |
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176 | (15) |
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6.6.2 Benchmark Study of CRA with a Larger Aperture |
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191 | (4) |
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6.7 Fractal Concentric Ring Circular Arrays |
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195 | (3) |
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196 | (2) |
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6.8 Spiral Concentric Ring Circular Arrays |
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198 | (7) |
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201 | (4) |
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7 Planar Sparse Array Antennas |
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205 | (66) |
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205 | (1) |
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7.2 Design Techniques for Sparse Antenna Arrays |
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206 | (1) |
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207 | (6) |
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7.3.1 Mean or Average Distance and Projection Method |
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208 | (2) |
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7.3.2 A Triangular Antenna Array |
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210 | (3) |
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7.4 Array with Random Isotropic Element Allocation |
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213 | (7) |
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7.5 Statistical Density Tapering (SDT) Method |
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220 | (5) |
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7.6 Fractal Engineering Techniques |
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225 | (1) |
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7.7 Hybridization of Statistical Density Tapering and Genetic Algorithm Techniques |
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226 | (6) |
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7.8 PT-Based Deterministic Design Methodology |
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232 | (29) |
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7.8.1 Synthesis of the Spatial Tapering Across the Array Aperture |
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236 | (4) |
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7.8.2 Synthesis of a Taylor-Like Distribution |
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240 | (3) |
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243 | (18) |
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261 | (10) |
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262 | (5) |
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Appendix 7A Randomization Approach: GeoLocating Method |
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267 | (4) |
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8 Use Cases for Sparse Array Antennas |
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271 | (11) |
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271 | (1) |
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8.2 Global Scenario on Sparse Array Antennas |
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271 | (2) |
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273 | (9) |
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8.3.1 A Stochastic Technique-Based Low SLL Sparse Array Antenna |
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273 | (3) |
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8.3.2 Multifunctional Dual-Band Sparse Array Antenna |
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276 | (6) |
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282 | (1) |
References |
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282 | (3) |
About the Author |
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285 | (2) |
Index |
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287 | |