KhomenkoN. P., and GavrіlуukO. N. “Selection of the Subgraphs of Some Types from the Given Graph ”. Ukrains’kyi Matematychnyi Zhurnal 18, no. 5 (August 31, 1966): 117-122. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/8449.