Stability analysis of new exact traveling-wave solutions of new coupled KdV and new coupled Zakharov-Kuznetsov systemsAly R. Seadawy, M. Arshad and Dianchen LuEur. Phys. J. Plus, 132 4 (2017) 162DOI: https://doi.org/10.1140/epjp/i2017-11437-5