DP-4-colorability of planar graphs without intersecting 5-cycles. - Xiangwen Li; Jian-Bo Lv; Mao Zhang 003 (Discret. Math., 2022)

Every planar graph without 5-cycles adjacent to 6-cycles is DP-4-colorable. - Xiangwen Li; Mao Zhang 003 (Australas. J Comb., 2023)