A note on convex hulls of more-part Sperner families
It is here noted that the results of \textit{P. A. Erdős} and \textit{G. O. H. Katona} [Graphs Comb. 2, 123-134 (1986; see below))] on the convex hull of several-part Sperner families of subsets of a set can be obtained as well for similarly defined products of arbitrary LYM orders.
scientific article; zbMATH DE number 4087669