QES solutions of a two-dimensional system with quadratic nonlinearities Bhabani Prasad Mandal, Brijesh Kumar Mourya and Aman Kumar Singh Eur. Phys. J. Plus, 135 3 (2020) 327 Published online: 24 March 2020 DOI: 10.1140/epjp/s13360-020-00335-6