1. Observation of a single beam gradient trap for dielectric particles;Ashkin;Opt. Lett.,1986
2. Laser als Mikromanipulator in Biologie und Medizin;Bereiter‐Hahn;Microsc. Acta,1972
3. Biological Microirradiation;Berns,1974
4. Laser microsurgery in cell and developmental biology;Berns;Science,1981
5. Argon ion laser microirradiation of nucleoli;Berns;J. Cell Biol.,1969