Otto Laporte
...that the German physicist Otto Laporte discovered what is known in spectroscopy as the Laporte rule?
...that the <a href="./Germans" id="mwB3E" rel="mw:WikiLink" title="Germans">German</a> physicist <b id="mwB3I"><a href="./Otto_Laporte" id="mwB3M" rel="mw:WikiLink" title="Otto Laporte">Otto Laporte</a></b> discovered what is known in <a href="./Spectroscopy" id="mwB3Q" rel="mw:WikiLink" title="Spectroscopy">spectroscopy</a> as the <a href="./Laporte_rule" id="mwB3U" rel="mw:WikiLink" title="Laporte rule">Laporte rule</a>?