@conference{136021, author = {Leticia Pibida and W N{omlat}rtersh{amlat}user and B Bushaw}, title = {Resonance Ionization Mass Spectrometry Measurements of 135Cs/137Cs Isotopic Ratio}, year = {2001}, month = {2001-01-01}, publisher = {ECAMP VII, Berlin, GE}, language = {en}, }