Weilun Xu Xia Zhang The maximum size of an edge 2-neighborhood in <i>P</i><sub>5</sub>-free graphs. 112961 2022 345 Discret. Math. 9 https://doi.org/10.1016/j.disc.2022.112961 https://www.wikidata.org/entity/Q114190517 db/journals/dm/dm345.html#XuZ22
