(NkONTROLX MATERIALOW I IZDELIJ RENTGENOWYMI LU^AMI (B/s - (NtRAPEZNIKOW(B, (Na(B.(Nk(B. s ((NmOSKWA (B:s (NmA[GIZ(B,s, 1951)
Keywords: (NkONTROLX KA^ESTWA PROMY[LENNYH IZDELIJs