Andrievsky, Serhii M.Harbuzov H. O.Doikov, D. N.Андрієвський, Сергій МихайловичАндриевский, Сергей Михайлович2014-03-162014-03-162012Odessa Astronomical Publicationshttps://dspace.onu.edu.ua/handle/123456789/4654Odessa Astronomical publications / Одесская астроном. обсерватория . – Одесса : Астропринт, 2012 . – Vol.25/1.Using the literature data on secular period changes reported for the small-amplitude Cepheids (s-Cepheids) it is shown that these stars are not crossing the instability strip for the first time. After correction of the observed pulsational chracteristics of s-Cepheids, in the diagram ”log(dP/P)100 - log P” they become indistinguishable from usual classic Cepheids, which are supposed to have already crossed the instability strip more than (or at least) once.enStars: CepheidsArticle