Chiba, S., M. Furuya, K. Ozeki, M. Tsugaki, and T. Yamashita. “A Degree Sum Condition on the Order, the Connectivity and the Independence Number for Hamiltonicity”. The Electronic Journal of Combinatorics, Vol. 26, no. 4, Dec. 2019, p. P4.53, doi:10.37236/5480.