1. Close binary systems
Author: Kopal, Zdene
Library: Central Library of Sharif University of Technology (Tehran)
Subject: ، Double stars
Classification :
QB
821
.
K75
1959
2. The Roche problem and its significance for double-star astronomy
Author: Kopal, Zdene
Library: Central Library of Sharif University of Technology (Tehran)
Subject: ، Double stars,، Roche equipotentials
Classification :
QB
421
.
K66
1989
