Mitja Mastnak, Alexandru Nica. Hopf algebras and the logarithm of the S-transform in free probability ― Extended abstract.
21st International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2009), 2009, Hagenberg, Austria. pp.623-634,
⟨10.46298/dmtcs.2679⟩.
⟨hal-01185371⟩