The Sixth International Conference on Laser Spectroscopy or SICOLS'83 was held at Interlaken, Switzerland, June 27 to July 1, 1983. Interlaken, a c ha nni ng sma 11 town with the i dea 1 fac i 1 i t i es of the Conferenc e Center CCC I surrounded by the scenery of well-known Swiss mountains nicely followed the tradition of the previous meetings of this series, which were held at Vail, Hegdve, Jackson, Rottach-Egern, and Jasper. At this international conference 310 scientists from 25 countries partici pated. The busy program lasted five days, where twice the afternoon session was replaced by...