Digitale Geschäftsmodelle - SET -Stefan Meinhardt, Alexander Pflaum · First published 2019Open the Tome
Ambient IntelligenceEmile Aarts, James L. Crowley, Heinz Gerhäuser, Alexander Pflaum, Janina Schmidt · First published 2008Open the Tome
Introductory analytical chemistryAlexander I Popov and Ronald T. Pflaum · First published 1966Open the Tome
