Bhavale, A. N., and B. N. Waphare. “Posets Dismantlable by Doubly Irreducibles”. The Journal of the Indian Mathematical Society 88, no. 1-2 (January 28, 2021): 46–59. Accessed May 6, 2024. https://informaticsjournals.com/index.php/jims/article/view/26053.