George E. Andrews, Peter Paule, Axel Riese,
"MacMahon's Partition Analysis VII: Constrained Compositions"
, in B. C. Berndt and K. Ono: q-Series with Applications to Combinatorics, Number Theory, and Physics, Serie Contemp. Math., Vol. 291, American Mathematical Society, Seite(n) 11-27, 2001, ISBN: 0-8218-2746-4