@article{RM_1964_19_5_a0,
     author = {E. B. Dynkin},
     title = {Martin boundaries and non-negative solutions of a~boundary value problem with a~directional derivative},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1--48},
     publisher = {mathdoc},
     volume = {19},
     number = {5},
     year = {1964},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1964_19_5_a0/}
}