@mastersthesis{mastersthesis55e951c6,
title   = {Derivacoes em aneis nao comutativos},
author = {Raphael, Deborah Martins and Polcino Milies, Francisco César},
year = {1985},
doi = {10.11606/D.45.1985.tde-20210728-234259},
school = {Universidade de São Paulo}
}