A Rapid Method for Measuring Strontium-90 Activity in Crops in ChinaLingjing Pan Pan, Guobing Yu, Deyun Wen, Zhi Chen, Liusi Sheng, Chung-King Liu and X. George XuEPJ Web Conf., 153 (2017) 01003DOI: https://doi.org/10.1051/epjconf/201715301003