TY - CHAP AU - Labudde, Peter AU - Nidegger, Christian AU - Adamina, Marco AU - Gingins, François TI - The development, validation and implementation of standards in science education: Changes and difficulties in the Swiss project HarmoS T2 - Making it tangible. Learning outcomes in science education PY - 2012 SP - 235 EP - 259 UR - ED - Bernholt, Sascha ED - Neumann, Knut ED - Nentwig, Peter ET - VL - PB - Waxmann Verlag CY - Münster ER -