Walks with small steps in the quarter plane, Contemp. Math, vol.520, pp.1-39, 2010. ,
DOI : 10.1090/conm/520/10252
Boundary Value Problems in Queueing System Analysis, 1983. ,
Two coupled processors: The reduction to a Riemann-Hilbert problem, Zeitschrift f???r Wahrscheinlichkeitstheorie und Verwandte Gebiete, vol.13, issue.No. 6, pp.47-325, 1979. ,
DOI : 10.1007/BF00535168
Random Walks in the Quarter Plane, 1999. ,
URL : https://hal.archives-ouvertes.fr/inria-00572276
Analytic Combinatorics, 2009. ,
DOI : 10.1017/CBO9780511801655
URL : https://hal.archives-ouvertes.fr/inria-00072739
An analytical method in the theory of two-dimensional positive random walks, Siberian Mathematical Journal, vol.84, issue.No. 4, pp.1314-1329, 1972. ,
DOI : 10.1007/BF00971868