@inproceedings{VollmerMoellmannKarstaedt2013, author = {Michael Vollmer and Klaus-Peter M{\"o}llmann and Detlef Karst{\"a}dt}, title = {Lecture Demonstrations with Liquid Nitrogen}, booktitle = {In: Proceedings / ICPE-GIREP International Conference Hands on Experiments in Physics Education [Medienkombination] : Duisburg - Germany, August 23 - 28, 1998 / ed. Gernot Born ... - Duisburg : Didaktik der Physik, Univ. - 1999 ISBN 3-00-004409-4}, year = {2013}, }