000 00554nam a2200193Ia 4500
005 20250619144832.0
008 250619s9999||||xx |||||||||||||| ||und||
020 _c22.50
040 _aMAIN
041 _aEnglish
082 _a621.382
_bELL
100 _aElldin, A.
245 0 _aAutomatic telephone exchanges based on the link connection principle
_b: switch calculations general survey
260 _aSweden
_b; Telefonaktiebolaget L M Ericsson
300 _a47p.
650 _aCommunication Engineering
650 _aEngineering
942 _cBK
999 _c113709
_d113709