UL HASSAN, Qazi Mahmood; MOHYUD-DIN, Syed Tauseef. EXP-FUNCTION METHOD USING MODIFIED RIEMANN– LIOUVILLE DERIVATIVE FOR SINGULARLY PERTURBED BOUSSINESQ EQUATIONS OF FRACTIONAL-ORDER. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 32, p. 185–192, 2014. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6223. Acesso em: 7 aug. 2026.