Die Königserhebung Friedrichs des Schönen im Jahr 1314Matthias Becher, Harald Wolter-von dem Knesebeck · First published 2017Open the Tome
EchocardiographyPaul Leeson, Andrew R. J. Mitchell, Harald Becher · First published 2007Open the Tome
Handbook of contrast echocardiographyHarald Becher, Harold Becher, Peter N Burns · First published 2000Open the Tome
