Partielle DifferentialgleichungenStrauss, Walter A., Helmut Salzmann · First published 2013Open the Tome
Compact Projective PlanesHelmut Salzmann, Dieter Betten, Theo Grundhöfer, Hermann Hähl, Rainer Löwen · First published 1995Open the Tome
A laboratory study of fluid and soil mechanics processes during hydraulic dredging =Helmut Salzmann · First published 1977Open the Tome