@article{136011, author = {Leticia Pibida and J Hutchinson and W Nortershauser and B Bushaw}, title = {Isotopic Ratio Measurements of 135Cs/137Cs Using Resonance Ionization Mass Spectrometry}, year = {2000}, number = {584}, month = {2000-01-01}, publisher = {Aip Conference Proceedings}, language = {en}, }