@article{GDZPPN002359766,
title = {Polar sets for supersolutions of degenerate elliptic equations.},
journal = {Mathematica Scandinavica},
volume = {63},
year = {1988},
pages = {136-150},
zbl = {0706.31015},
url = {http://dml.mathdoc.fr/item/GDZPPN002359766}
}
Heinonen, Juha; Kilpeläinen, Tero. Polar sets for supersolutions of degenerate elliptic equations.. Mathematica Scandinavica, Tome 63 (1988) pp. 136-150. http://gdmltest.u-ga.fr/item/GDZPPN002359766/