(NkORENNAQ \KONOMI^ESKAQ ZADA^A (B/s - (NsAHAROWA(B, (NwALENTINA aLEKSEEWNAs ((NmOSKWA (B:s (NmOSK(B. (NRABO^IJ(B,s, 1973)
Keywords: (NpROIZWODITELXNOSTX TRUDA W sssrs