1. Hitting spheres from the exterior;Betz;Ann. Probab.,1994
2. Diffusions and waves;Gzyl;J. Math. Anal. Appl.,1993
3. Measure valued random process;Horowitz;Z. Wahrscheinlichkeitstheor. Verwandte Geb.,1985
4. Brownian exit distribution from a ball;Hsu,1986
5. Diffusion Processes and their Sample Paths;Itô,1965