R.T. Saygitov ; Р.Т. Сайгитов
McCollum E.F., Simmonds N., Becker J.E., Shipley P.G. Studies on experimental rickets and experimental demonstration of the existence of a vitamin which promotes calcium deposition. J. Biol. Chem. 1922; 53: 293–312..  , 2015

Bindeman I.N ; Leonov V.L ; Colon D.P...
http://repo.kscnet.ru/3755/1/Bindeman__2019__Leonov_Rogozin_et%20al___Isotopic-Petrologic-Investigation-and-Model-of-Genezis --- Karymshina-Volcanic-Complex.pdf.  , 2019