Soares PF, Souza PA de. Conical convergent valve with axial vortex. Semin., Exact Tech. Scienc. [Internet]. 2004 Dec. 15 [cited 2024 May 9];12(4):205-13. Available from: https://ojs.uel.br/revistas/uel/index.php/semexatas/article/view/3165