Authors: Thais Milagres de Oliveira
DOI: http://scholar.google.com/scholar_url?url=https://repository.uantwerpen.be/docstore/d:irua:1300&hl=en&sa=X&d=17124567412273372022&ei=WOWNX6rnDuiOy9YPwde9sA0&scisig=AAGBfm1vJfW59GY1QCmGW0ELPj-73FwRIA&nossl=1&oi=scholaralrt&hist=gGrFCJUAAAAJ:15944731687754687080:AAGBfm3m-0FN9jV4Bpa7a6u3oWBRP5KCoA&html=