Sudao Bilige Temuer Chaolu Xiaomin Wang Application of the extended simplest equation method to the coupled Schrödinger-Boussinesq equation. 517-523 2013 224 Appl. Math. Comput. https://doi.org/10.1016/j.amc.2013.08.083 db/journals/amc/amc224.html#BiligeCW13