VARIABILITY OF THE OBJECT M1-15 = SS73 6 DURING 45 YEARS.Published in:Information Bulletin on Variable Stars, 2017, v. 63, n. 6215, p. 1, doi. 10.22444/IBVS.6215By:KONDRATYEVA, L.;DENISSYUK, E.;RSPAEV, F.;KRUGOV, A.Publication type:Article