A. N. Bhavale, S. S. Mundekar, P. V. Kule, and K. K. Shete. 2025. “Hasse Diagrams of Basic Blocks Containing Four Comparable Reducible Elements and Having Nullity Five”. International Journal of Mathematics And Its Applications 13 (2):27-34. https://ijmaa.in/index.php/ijmaa/article/view/1552.