000 00340nam a2200133Ia 4500
001 4953
008 150525s9999 xx 000 0 und d
020 _a0 906048 36 2
100 _aBear Donald
245 _aPrinciples Of Telecommunication-Traffic Engineering
250 _a0
260 _aLondon
_bPeter Peregrinus
_c1980
300 _a,;ill.
999 _c34630
_d34630