(NkARL wEJER[TRASS (B:s 1815-1897 - (NkO^INA(B, (NpELAGEQ qKOWLEWNAs ((NmOSKWA (B:s (NnAUKA(B,s, 1985)
Keywords: (NwEJER[TRASS(B, (NkARL s -- 1815-1897; (NmATEMATI^ESKAQ NAUKAs