Shakeel, Muhammad, and Syed Tauseef Mohyud-Din. 2013. “MODIFIED (G ′ G)-EXPANSION METHOD WITH GENERALIZED RICCATI EQUATION TO THE SIXTH-ORDER BOUSSINESQ EQUATION”. Italian Journal of Pure and Applied Mathematics 30 (May):393-410. https://journals.uniurb.it/index.php/ijpam/article/view/6067.