@inproceedings{inproceedings57a81548,
title   = {Doppler broadening of annilhilation radiation due to in-flight positron and electron momentum aluminium},
author = {Helene, Otaviano Augusto Marcondes and Nascimento, Eduardo do and Takiya, Carlos and Vanin, Vito Roberto},
year = {2002},
publisher = {SBF},
booktitle   = {Reunião de trabalho sobre fisica nuclear no brasil}
}