Dario, Ronie Peterson, Gustavo Sanches Dalaz, and José Roberto Freitas. “FORMULAS FOR QUADRATIC AND CUBIC EQUATIONS OVER HAMILTON QUATERNIONS”. Ciência e Natura 37 (August 7, 2015): 390–400. Accessed September 12, 2024. https://periodicos.ufsm.br/cienciaenatura/article/view/14630.