The group of automorphisms of a transitive 2-(91,6,1) design
A characterization of the possible automorphism groups of point- transitive 2-(91,6,1) designs is proved. Using these results, \textit{Z. Janko} and the reviewer have recently shown (to appear in Discrete Math.) that any such design with group of order larger than 91 is known.
scientific article; zbMATH DE number 4142051