@book{UBHD-1082176, author={Helms, Lester L.}, title={Einf{\"u}hrung in die Potentialtheorie}, publisher={de Gruyter}, address={Berlin [u.a.]}, year={1973}, pages={305 S.}, language={ger}, isbn={3-11-002039-4 and 978-3-11-002039-7}, series={De Gruyter Lehrbuch}, keywords={Potenzialtheorie ; Potenzialtheorie}, library={UB [Signatur: 73 B 4063] ; MA [Signatur: Helms] ; PY [Signatur: PY/SK 560 H481]}, }