SHARAF, P. A.; MOMINKHAN, Z. Mathematica Module for Singularity Free Computations of Euler Parameters. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 5, n. 1, p. 562–569, 2013. DOI: 10.24297/jam.v5i1.3667. Disponível em: https://rajpub.com/index.php/jam/article/view/3667. Acesso em: 3 jul. 2024.