Saturation transfer EPR (ST-EPR) for dating biocarbonetes containing large amount of 'Mn POT.2+': separation of ''SO IND.3'POT.-' and ''CO IND.2'POT.-' lines and geochronology of Brazilian fish fossil - Sastry, M. D; Andrade, Marcelo Barbosa de; Watanabe, Shigueo (Radiation Measurements, 2003)