Equation Icon  ′ 4π ′ ( ) P A𝒮B- = ---r3T AA′BB′tAA′ℰABℰ¯BB′ + 𝒪 r4 , (4.9 ) r 3 ( ) J AB-= 4π-r3T ′ ′tAA ′ rtB′E𝜀BF ℰA-ℰB- + 𝒪 (r5), (4.10 ) 𝒮r 3 AA BB (E F)