F 531.163 Sal T Salminen, Peavo The 3-dimensional bessel process and brownian motion. Abo/Finlandia/Abo Akademi , 1980. 8 p. 25 cm. (Acta Academia Aboensis. Ser B Mathematica et Physica.Matematik. Naturvetenskaper, Teknik, v. 40, no. 7) Bibliografía: p. 8