@inproceedings{inproceedings422be11b,
title   = {The positive definite and the third-order upstream schemes applied to 2-D frontogenesis problem: intercomparison and optimization},
author = {Pereira Filho, Augusto José},
year = {2002},
publisher = {Fábrica da Palavra},
booktitle   = {Congresso Brasileiro de Meteorologia}
}