Affiliation: | 1. S.P.Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, Nesterov Str. 3, 03057 Kiev, Ukraine;2. Centro de Investigation Cientifica de Yucatan A.C., Calle 43, No 130, Colonia, Chuburna de Hidalgo, C.P. 97200, Merida, Yucatan, México |