TY  - BOOK
AU  - Helms Lester L
TI  - Potential theory
SN  - 9781848823181 (pbk)
U1  - B38, P9   TB 
PY  - 2009///
CY  - London
PB  - Springer       
KW  -  Potential theory
KW  - Mathematics
N1  - References 431-434p.; Index 435-438p
ER  -