|Original language||English (US)|
|Number of pages||3|
|Journal||Journal of molecular spectroscopy|
|State||Published - Oct 1998|
Bibliographical noteFunding Information:
Work at the University of Minnesota was supported by the National Science Foundation. The theoretical investigation is part of the project 20-052264.97 of the Schweizerischer Nationalfonds zur Förderung der Wissenschaften. We are also grateful to Prof. Hanspeter Huber for valuable advice and discussion.