1. Ishibashi H, Yamawaki M, Hirose A, Noda A, Kanno S, Saito T, Masuda S, Seyama S, Tanoi K, Nakanishi TM (2010) Double-tracer radiography with sulfur-35 and phosphorus-32 using imaging plates in Brassica napus L. Radioisotopes 59:75–79
2. Komamura M, Tsumura A, Yamaguchi N, Fujiwara H, Kihou N, Kodaira K (2006) Long-term monitoring and analysis of 90Sr and 137Cs concentrations in rice, wheat and soils in Japan from 1959 to 2000. Bull Natl Inst Agro Environ Sci 24:1–21
3. Noguchi J, Suzuki K (2001) Imaging plate characteristics of positron emitters: 11C, 13N, 15O, 18F and 38K. Radiochem Acta 89:433–437
4. Uchida S, Tagami K, Hirai I (2007) Soil-to-plant transfer factors of stable elements and naturally occurring radionuclides (1) upland field crops collected in Japan. J Nucl Sci Technol 44(4): 628–640