(NoTTO `LXEWI^ {MIDT (B: s (NvIZNX I DEQTELXNOSTX (B: (NsBORNIK(B, (NPOSWQ](B. (NgERO@ sOWETSKOGO sO@ZA AKAD(B. (No(B. (N`(B. (N{MIDTU(B. 1891-1956 /s - (NaKADEMIQ NAUK sssrs ((NmOSKWA (B: s (NiZD(B-(NWO aKAD(B. (NNAUK sssr(B, s, 1959)
Keywords: (N{MIDT(B, (NoTTO `LXEWI^s; (NmATEMATIKAs; (NgEOGRAFIQs; (NgEOFIZIKAs