Roland Speicher, « Multiplicative functions on the lattice of non-crossing partitions and free convolution », Mathematische Annalen, vol. 298, no 4, , p. 611–628 (DOI10.1007/BF01459754, MR1268597).
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Roland Speicher, « Multiplicative functions on the lattice of non-crossing partitions and free convolution », Mathematische Annalen, vol. 298, no 4, , p. 611–628 (DOI10.1007/BF01459754, MR1268597).