@inproceedings{inproceedings57f1c6cc,
title   = {Phonon-assisted shallow-impurity transitions in semiconductor superlattices in magnetic fields},
author = {Alfonso, Alexys Bruno and Hai, Guo-Qiang},
year = {1999},
publisher = {Sociedade Brasileira de Física},
booktitle   = {Encontro Nacional de Física da Matéria Condensada}
}