Optical studies of atoms and ions in superfluid helium using a ccd-camera system Tabbert, B. ; Beau, M. ; Foerste, M. ; Günther, H. ; Hönninger, C. ; Hust, H. ; Layer, K. ; Putlitz, G. ; Schumacher, T. Abstract Publication: Zeitschrift fur Physik B Condensed Matter Pub Date: September 1995 DOI: 10.1007/BF01338414 Bibcode: 1995ZPhyB..98..399T