Science Teachers' LearningCommittee on Strengthening Science Education through a Teacher Learning Continuum, Suzanne Wilson, Heidi Schweingruber, Natalie Nielsen, Board on Science Education · First published 2015Open the Tome
Gründe und Folgen der Beendigung von PflegeverhältnissenErwin Jordan, Friedhelm Güthoff, Thomas Lakies, Johannes Münder, Heidi Nielsen · First published 1997Open the Tome