About SIMO C
About Univ. Barcelona, Spain
About LACOMBA E
About Univ. Aut<span style=text-decoration:overline>o ́</span>noma Metropolitana, M<span style=text-decoration:overline>e ́</span>xico
About Celestial Mechanics
About celestial mechanics
About n-body problem
About Astronomy and astrophysics in general
About 縮退
About 衝突
About 解析