1. The Theory of Partitions;Andrews,1976
2. Generalized Permutation Statistics and a Classification of the Mahonian Statistics;Babson,2000
3. M. Dworkin, Generalizations of Rook Polynomials, Ph.D. Thesis, Brandeis University, 1996.
4. An interpretation for Garsia and Remmel's q-hit numbers;Dworkin;J. Combin. Theory Ser. A,1998
5. q-Counting rook configurations and a formula of Frobenius;Garsia;J. Combin. Theory, Ser. A,1986