(NpROBLEMA INVEKCII (B:s ((NnA PRIMERAH AZOTNOJ PROMY[LENNOSTI(B) /s - (NgELXPERIN(B, (NnISON iLXI^s; (NnAJDI^(B, (NiOSIF mATWEEWI^s ((NmOSKWA (B:s (NgOSHIMIZDAT(B,s, 1939)
Keywords: (NiNVEKCIQs