TY  - BOOK
AU  - Heinonen, Juha and Others
AU  - Kilpelainen, Tero ; jt. auth.
AU  - Marto, Olli ; jt. auth.
TI  - Nonlinear potential theory of degenerate elliptic equations
T2  - Oxford Mathematical monographs
U1  - 515.78 
PY  - 1993///
CY  - Oxford
PB  - Clarendon Press
ER  -