1.
Santana H. Semina: Ciências Exatas e Tecnológicas, v. 28, n.2, 2007. Semin., Exact Tech. Scienc. [Internet]. 2007 Dec. 15 [cited 2024 May 8];28(2). Available from: https://ojs.uel.br/revistas/uel/index.php/semexatas/article/view/1970