@article{MAN_1988__281_4_164435,
     author = {P.J. Fitzsimmons and R.K. Getoor},
     title = {On the {Potential} {Theory} of {Symmetric} {Markov} {Porcesses.}},
     journal = {Mathematische Annalen},
     pages = {495--512},
     publisher = {mathdoc},
     volume = {281},
     number = {4},
     year = {1988},
     zbl = {0627.60067},
     url = {http://geodesic.mathdoc.fr/item/MAN_1988__281_4_164435/}
}