On Lie symmetries, exact solutions and integrability to the KdV-Sawada-Kotera-Ramani equationPan-Li Ma, Shou-Fu Tian, Tian-Tian Zhang and Xing-Yong ZhangEur. Phys. J. Plus, 131 4 (2016) 98DOI: https://doi.org/10.1140/epjp/i2016-16098-2