@mastersthesis{mastersthesisdaabfb8d,
title   = {Euler obstruction and generalizations},
author = {Santana, Hellen Monção de Carvalho and Grulha Júnior, Nivaldo de Góes},
year = {2019},
doi = {10.11606/T.55.2020.tde-19032020-161129},
school = {Universidade de São Paulo}
}