Dual bases for non commutative symmetric and quasi-symmetric functions via monoidal factorization - Gérard Henry Edmond Duchamp; Ladji Kane; Vincel Hoang Ngoc Minh; Christophe Tollu (CoRR, 2013)

Combinatoire et algorithmique des factorisations tangentes à l'identité. (Combinatorics and algorithms for factorizations tangent to the identity). - Ladji Kane (2014)

Dual bases for noncommutative symmetric and quasi-symmetric functions via monoidal factorization. - Van Chiên Bui; Gérard Duchamp; Vincel Hoang Ngoc Minh; Ladji Kane; Christophe Tollu (J. Symb. Comput., 2016)