@article{RCM_2014_48_2_a3,
     author = {Leonardo Fabio Chac\'on-Cortes},
     title = {The {Problem} of the {First} {Passage} {Time} for {Some} {Elliptic} {Pseudodifferential} {Operators} {Over} the p-adics},
     journal = {Revista colombiana de matematicas},
     pages = {191--209},
     publisher = {mathdoc},
     volume = {48},
     number = {2},
     year = {2014},
     url = {http://geodesic.mathdoc.fr/item/RCM_2014_48_2_a3/}
}