[1]  Y. Gao, P. Li, X. Li, Further results on the total monochromatic connectivity of graphs. Journalof Combinatorial Optimization, 2022, Vol.44, pp:603-616.(SCI, 四区, IF 1.262)

[2]  Y. Gao, X. Li, Monochromatic vertex-disconnection colorings of graphs. Bulletin of the Malaysian Mathematical Sciences Society, 2022, Vol.45, pp:1621-1640. (SCI, 三区，IF 1.397)

[3]  Y. Gao, P. Li, X. Li, Extremal graphs and classification of the planar graphs by their MC-colorings. Discussiones Mathematicae Graph Theory, http://doi.org/10.751/dmgt.2428, in press.(SCI, 四区，IF 1.028)