Diagonal checker-jumping and Eulerian numbers for color-signed permutations. Eriksen, Niklas; Eriksson, Henrik; Eriksson, Kimmo — 2000 The Electronic Journal of Combinatorics [electronic only]
Enumeration of derangements with descents in prescribed positions. Eriksen, Niklas; Freij, Ragnar; Wästlund, Johan — 2009 The Electronic Journal of Combinatorics [electronic only]