@article{sergio_gusev_leite_olshanetskii_bykov_moshegov_bakarov_toropov_maude_estibals_et al._2002,  title={Landau levels in two and three-dimensional electron gases in a wide parabolic quantum well},  volume={32},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332002000200027},  DOI={10.1590/S0103-97332002000200027},  number={2a},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Sergio, C.S. and Gusev, G.M. and Leite, J.R. and Olshanetskii, E.B. and Bykov, A.A. and Moshegov, N.T. and Bakarov, A.K. and Toropov, A.I. and Maude, D.K. and Estibals, O. and Portal, J.C.},  year={2002},  month={Jun},  pages={347–349} }