Zrimoe znanie o knigakh Klimenta Arkadʹevicha Timiriazeva i Aleksandra Evgenʹevicha Fersmana
Razgon, Lev Ėmmanuilovich.

1983
Timiri︠a︡zev, Kliment Arkadʹevich.
Fersman, Aleksandr Evgenʹevich.