Aleksandrowicz, Gadi; Barequet, Gill (2011), "Parallel enumeration of lattice animals", in Atallah, Mikhail J.; Li, Xiang-Yang; Zhu, Binhai (eds.), Frontiers in Algorithmics and Algorithmic Aspects in Information and Management - Joint International Conference, FAW-AAIM 2011, Jinhua, China, May 28-31, 2011. Proceedings, Lecture Notes in Computer Science, vol. 6681, Springer, pp. 90–99, doi:10.1007/978-3-642-21204-8_13, ISBN978-3-642-21203-1.
Redelmeier, D. Hugh (1981), "Counting polyominoes: yet another attack", Discrete Mathematics, 36 (2): 191–203, doi:10.1016/0012-365X(81)90237-5