00469nam 2275546 450000100060000000300230000600500090002900800410003808200130007907200250009202000220011710000200013926000270015924500250018665000250021165000220023665000310025875546StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a621.3845 amobile network layer a978-81-317-2426-2 aJochen Schiller bPEARSON EDUCATI c2003 amobile communicatios amobile network layer asatellite systems atelecommunications systems