@mastersthesis{mastersthesis02ef8edf,
title   = {Global solvability of systems on compact surfaces},
author = {Zugliani, Giuliano Angelo and Bergamasco, Adalberto Panobianco and Parmeggiani, Alberto and Zani, Sérgio Luís},
year = {2014},
school = {Universidade de São Paulo}
}