@conference {geissler1995, title = {Measurements of bubble size distributions with an optical technique based on depth from focus}, booktitle = {Air-Water Gas Transfer, Selected Papers, 3rd Intern. Symp. on Air-Water Gas Transfer}, year = {1995}, pages = {351--362}, publisher = {AEON}, organization = {AEON}, doi = {10.5281/zenodo.10400}, author = {Peter Gei{\ss}ler and Bernd J{\"a}hne and Bernd J{\"a}hne}, editor = {E. C. Monahan} }