@article{GDZPPN002100142, title = {Finely harmonic morphisms, Brownian path preserving functions and conformal martingales.}, journal = {Inventiones mathematicae}, volume = {75}, year = {1984}, pages = {179-188}, zbl = {0537.60083}, url = {http://dml.mathdoc.fr/item/GDZPPN002100142} }
Oksendal, B. Finely harmonic morphisms, Brownian path preserving functions and conformal martingales.. Inventiones mathematicae, Tome 75 (1984) pp. 179-188. http://gdmltest.u-ga.fr/item/GDZPPN002100142/