Diemunsch, J., M. Ferrara, A. Lo, C. Moffatt, F. Pfender, and P. S. Wenger. “Rainbow Matchings of Size $\delta(G)$ in Properly Edge-Colored Graphs”. The Electronic Journal of Combinatorics, Vol. 19, no. 2, June 2012, p. P52, doi:10.37236/2443.