@inproceedings{inproceedings91bd8a9b,
title   = {High efficiency source coupling into single mode optical fibers},
author = {Celaschi, S and Faria Junior, I F},
year = {1988},
publisher = {Sbt/Ufpb/Ufpe},
booktitle   = {Simpósio Brasileiro de Telecomunicações}
}