Absorption of Orally Administered EnzymesMichael L.G. Gardner, Klaus-Jürgen Steffens · First published 2014Open the Tome
Grow your own houseAlexander von Vegesack, Mateo Kries, Simon Velez, Jean Dethier, Klaus Steffens · First published 2000Open the Tome
Injective choice functionsMichael Holz, Klaus-Peter Podewski, Karsten Steffens · First published 1987Open the Tome
