Media type: E-Article Title: Das Maser-Prinzip Contributor: Queisser, Hans-Joachim imprint: Springer Science and Business Media LLC, 1959 Published in: Die Naturwissenschaften Language: German DOI: 10.1007/bf00628951 ISSN: 0028-1042; 1432-1904 Keywords: General Medicine ; Ecology, Evolution, Behavior and Systematics Origination: Footnote: