@article{AFM_1992_17_2_a3,
     author = {L.L. Helms},
     title = {Brownian motion in a closed convex polygon with normal reflection},
     journal = {Annales Fennici Mathematici},
     pages = {199--209},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1992},
     doi = {10.5186/aasfm.1992.1724},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1992.1724/}
}