1. A generalization of the AZ identity;Ahlswede;Combinatorica,1993
2. R. Ahlswede, N. Cai, 1993, Incomparability and intersection properties of Boolean interval lattices and chain posets, Diskrete Strukturen in der Mathematik, preprint 93-037 SDS 343, University of Bielefeld, 1, 16
3. An identity in combinatorial set theory;Ahlswede;Adv. in Math.,1990
4. On cloud-antichains and related configurations;Ahlswede;Discrete Math.,1990
5. Combinatorics of Finite Sets;Anderson,1987