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3. BACHHUBER, H.; BUNZL, K.; GANS, I.; SCHIMMACK, W.(Gesellschaft für Strahlenund Umweltforschung mbH München Institut für Strahlenschutz, 8042 Neuherberg): The migration of137Cs and90Sr in multilayered soils: Results from batch, column, and fallout investigations.Nucl. Technol. ISSN 0029-5450. (Nov 1982). v. 59 (2) p. 291–301. (RN 16:001806).
4. BAHA AL-DEEN, A. H.; BAHA AL-DEEN, B. K. DE(Univ. de Oriente, Cumana (Venezuela). Dpto. de Quimica): A method to determine89Sr and90Sr when they are in mixture (In Spanish). Un metodo para determinar el89Sr y el90Sr cuando estan mezclados.Acta Cient. Venez. ISSN 0001-5504. (Jun 1976). v. 27 (6) p. 297–300. (RN 16:052680).
5. INIS-mf-9626;A. Bauman,1984