TY - BOOK AU - Zytkow, Anna N., ed. ED - Symposium on the Problem Commission Physics and Evolution of Stars TI - Nonstationary evolution of close binaries: proceedings of the multilateral coopertion between the academies of sciences of socialist countries second symposium of the problem commission physics and evolution of stars, held in Warsaro, Poland, June 20-25, 1977 T2 - Polish academy of sciences copernicus astronomical center PY - 1978/// CY - Warszawa PB - PWN - Polish Scientific Publishers KW -  Binary stars KW -  Close binary stars  KW - Astronomy and astrophysics thesaurus  ER -