Citations of
William Y.C. Chen, The skew, relative and classical derangements, Discrete Math., 160 (1996), 235¨C239.
William Y. C. Chen and Jessica C. Y. Zhang, The skew and relative derangements of type B. Electron. J. Combin. 14(1) (2007) #N24.
R. J. Clarke, G. N. Han and J. Zeng, A combinatorial interpretation of the Seidel generation of q-derangement numbers, Ann. Combin., 1 (1997) 313-327.
Hilarion Faliharimalala, Études combinatoires du tableau d'Euler sur les produits en couronne, PhD Thesis, l'Universite D' Antananarivo, 2010.
Y. Sun and Y. Xu,The largest singletons in weighted set partitions and its applications,arxiv:math.Co/10071336.
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