Media type: E-Article Title: On the Physical Reasons for the Extension of Symmetry Groups in Molecular Spectroscopy Contributor: Lattanzi, Franca; Di Lauro, Carlo imprint: MDPI AG, 2010 Published in: Symmetry Language: English DOI: 10.3390/sym2010213 ISSN: 2073-8994 Keywords: Physics and Astronomy (miscellaneous) ; General Mathematics ; Chemistry (miscellaneous) ; Computer Science (miscellaneous) Origination: Footnote: Access State: Open Access