Lawrencenko, S., and A. M. Magomedov. “Enumeration of Abstract Complexes of a Given Kind (Labeled Vs. Unlabeled): A Mathematical Approach ”. Novel Research Aspects in Mathematical and Computer Science Vol. 8 (October 1, 2022): 106–126. Accessed June 4, 2026. https://stm.bookpi.org/NRAMCS-V8/article/view/8361.