1. Dukhovnyĭ mir V.I. Vernadskogo / Spirova-Dri͡agina V.I. Spirova-Dri︠a︡gina, V. I. (Viktorii︠a︡ Ivanovna) [Browse] Simferopolʹ : Biznes-Inform, 2013. Book AvailableReCAP - Remote Storage Bookmark
2. V. O. Kovalevskiĭ. Davitashvili, L. S. (Leo Shiovich), 1895- [Browse] Moskva, Izd-vo Akademii nauk SSSR, 1951. Book AvailableReCAP - Remote Storage » S 1497.318 Bookmark