000
00303nam a2200121Ia 4500
008
220204s9999 xx 000 0 und d
082
_a
621.39
_b
ELI
100
_a
Elion, G R
245
0
_a
Fiber optics in communication systems
260
_a
New York
_b
Dekker
_c
1978
700
_a
Elion, H H
942
_c
BK
999
_c
29897
_d
29897