中国空间科学技术
地球引力场带谐调和项引起的卫星轨道摄动
杨维廉
SATELLITE ORBIT PERTURBATION CAUSED BY ZONAL SPHERICAL HARMONICS IN THE EARTH'S GRAVITATIONAL FIELD
Yang Weilian (Institute of spacecraft system engineering)
中国空间科学技术 . 1987, (06): 45 -51 .