1. ALAERTS, L., OP DE BEECK J. P., HOSTE, J. (State Univ., Ghent, Belgium):227Ac−Be isotopic neutron source for application in high-accuracy neutron activation analysis. Anal. Chim. Acta, 69 (1974) 1–9, see also Nucl. Sci. Abstr. 31 (1975) No. 2766.
2. ALTAN, T., KUT A., KUT, D., OLMEZ, I., PAMUK, F.: Determination of trace elements in airborne particulate material by activation analysis. Tech. J., Ankara Nucl. Res. Cent. 1 (1974) 39–44, see also Nucl. Sci. Abstr. 31 (1975) No. 5560.
3. AOKI, A. (Kyoto Prefectural Univ., Japan): Neutron activation analysis of airborne dust. Kyoto Furitsu Daigaku Gakujutsu Hokoku (Rigaku) No. 23 (1972) 55–9 (in Japanese), see also Nucl. Sci. Abstr. 31 (1975) No. 14.
4. BAKHTEREV, V. V., SENKO-BULATNYI, I. N., KHARUS, R. L.: Estimating the confidence level and accuracy of determining the concentration of copper by a gamma-spectrometric activation method. Izv. Vyssh. Ucheb. Zaved., Geol. Razved. No. 6 (1974) 138–41 (in Russian), see also Nucl. Sci. Abstr. 31 (1975) No. 12.
5. BATTISTON, U., MOAURO, A. (Comitato-Nazionale per l'Energia Nucleare, Rome, Italy): Determination of the total content of Ag, As, Au, Co, Cr, Re, Sb, U, and Zn in natural waters by neutron activation analysis. RT/CHI-(74)8, June 1974, 31 p. (in Italian), see also Nucl. Sci. Abstr. 31 (1975) No. 2749.