Search results for: Ying Liu
Chinese Astronomy and Astrophysics > 1996 > 20 > 4 > 487-491
Chinese Astronomy and Astrophysics > 1996 > 20 > 3 > 315-320
Chinese Astronomy and Astrophysics > 1996 > 20 > 4 > 487-491
Chinese Astronomy and Astrophysics > 1996 > 20 > 3 > 315-320