TY - GEN A2 - American Telephone and Telegraph Company PB - American Telephone and Telegraph Company L1 - http://delibra.bg.polsl.pl/Content/40054/BCPS_44036_1946_The-Bell-System-Tech.pdf L2 - http://delibra.bg.polsl.pl/Content/40054 KW - telekomunikacja KW - prasa techniczna T1 - The Bell System Technical Journal : devoted to the Scientific and Engineering aspects of Electrical Communication, Vol. 25, No. 2 UR - http://delibra.bg.polsl.pl/dlibra/publication/edition/40054 ER -