00377nam a2200145Ia 4500003000500000008004100005020001800046040001900064082000700083100002400090245005700114260004000171300000800211546001200219STCL181203s9999    xx            000 0 und d  a9788121914598  aSTCLbENcSTCL  222  aSarkar, Subir Kumar 0aOptical fibres and fibre optic communication systems  bS. Chand & CompanyaNew Delhic2012  a388  aEnglish