A. Yildirim, A. S. S. Paghaleh, M. Mirzazadeh, H. Moosaei, and A. Biswas, “New exact traveling wave solutions for DS-I and DS-II equations”, NAMC, vol. 17, no. 3, pp. 369–378, Jul. 2012, doi: 10.15388/NA.17.3.14062.