]. O. Be and . Bernardi, Bijective counting of tree-rooted maps and shuffles of parenthesis systems, Elec. J. of Comb, vol.14, issue.1, p.9, 2007.

M. Bridgeman, The structure and enumeration of link projections, Transactions of the American Mathematical Society, vol.348, issue.06, pp.2235-2248, 1996.
DOI : 10.1090/S0002-9947-96-01484-5

M. Crescimanno and W. Taylor, Large N phases of chiral QCD2, Nuclear Physics B, vol.437, issue.1, pp.3-24, 1995.
DOI : 10.1016/0550-3213(94)00561-R

E. Duchi, D. Poulalhon, and G. Schaeffer, Uniform random sampling of simple branched coverings of the sphere by itself, Proceedings of the Twenty-Fifth Annual ACM-SIAM Symposium on Discrete Algorithms, pp.294-304, 2014.
DOI : 10.1137/1.9781611973402.21

. Ekedahl, . Lando, &. Shapiro, ]. S. Vainshteinf, and . Felsner, Hurwitz numbers and intersections on moduli spaces of curves, Uber die Anzahl der Riemann'schen Flächen mit gegebenen Verzweigungspunkten, Math. Ann, pp.297-327, 1902.
DOI : 10.1007/s002220100164

V. Strehl, Minimal transitive products of transpositions?the reconstruction of a proof of A. Hurwitz . (English summary) Sm, Art. S37c, 12 pp, 1996.

J. Tomasini, On the branched coverings of the sphere: a combinatorial invariant

R. Vakil, Genus 0 and 1 Hurwitz numbers: recursions, formulas, and graph-theoretic interpretations, Transactions of the American Mathematical Society, vol.353, issue.10, pp.4025-4038, 2001.
DOI : 10.1090/S0002-9947-01-02776-3

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.156.5068