@article{075358612, title = "Exact solitary and periodic-wave solutions of the K(2,2) equation (defocusing branch)", author = "Xijun, D.E.N.G. and Parkes, E.J. and Jinlong, C.A.O.", year = "2010", journal = "Applied Mathematics and Computation", volume = "217", number = "4", pages = "1566-1576", issn = "0096-3003", url = "https://eurekamag.com/research/075/358/075358612.php" }