Permanent link
https://www.sidalc.net/search/Record/oai:scielo:S0004-28032012000200007
https://www.sidalc.net/search/Record/oai:scielo:S0004-28032012000200007
To proceed, we need your consent for the processing of your personal data. By clicking "Accept" you agree to our terms and conditions of the "Privacy Notice".