TY - JOUR AU - M. Basko BT - Annals of the New York Academy of Sciences DA - Jan-12-1977 DO - 10.1111/nyas.1977.302.issue-110.1111/j.1749-6632.1977.tb37061.x PY - 1977 SP - 403 EP - 407 T2 - Annals of the New York Academy of Sciences TI - Search for Periodicity in Optical Light Variations of CYG X-2 UR - http://doi.wiley.com/10.1111/j.1749-6632.1977.tb37061.x VL - 302 SN - 0077-8923 ER -