"Yasuhiko FUJII,Masao NOMURA,Toshitaka KANESHIKI,Yoichi SAKUMA,Tatsuya SUZUKI,Saori UMEHARA,Tadahumi KISHIMOTO","Mass dependence of calcium isotope fractionations in crown-ether resin chromatography",,"Isotope in Environmental Health and Studies",,"Vol. 46","No. 2"," 233-241",2010,June