... The present improved electronic version of the GCVS4 Volumes I-V, combined with Name-Lists of Variable Stars Nos.67-77, are available from Sternberg Institute to http://www.sai.msu.ru/gcvs/gcvs/ . ... General Catalogue of Variable Stars, 4th Edition, Volumes I-III. ... Samus' N.N., Goranskii V.P., Durlevich O.V., Zharova A.V., Kazarovets E V., Pastukhova E.N., Hazen M.L., and Tsvetkova T.M. , An Electronic Version of Volume I of the General Catalogue of Variable Stars with Improved Coordinates, . ...