(NhARAKTERISTIKI DLITELXNOJ PRO^NOSTI TRUBNYH STALEJ (B/s ((NlENINGRAD (B:s (Nb(B. (NI(B.,s, 1968)
Keywords: (NtRUBNAQ STALX (B- (NgAZOPROMYSLOWYE TRUBOPROWODYs