@article{CRMATH_2014__352_10_797_0,
     author = {N\'ejib Ben Salem and Sami Mustapha and Mohamed Sifi},
     title = {Survival time of a heterogeneous random walk in a quadrant},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {797--801},
     publisher = {Elsevier},
     volume = {352},
     number = {10},
     year = {2014},
     doi = {10.1016/j.crma.2014.08.016},
     language = {en},
}