Vandenberghe, R., Vlaeminck, R., Vancraen, M., Herbots, N., Gloesener, D., Vandewiele, F., Dedoncker, G., Vennik, J., Tollet, H., Creemers, C., Neyens, A., Vanvooren, J., Butaye, L., Adams, F., & Gybels, R. (1987). A Comparison of Aes, Sims, Iss and Rbs Analysis of Sixny Layers. Fresenius’ Zeitschrift fuer Analytische Chemie, 329(2-3), 380-384. https://doi.org/10.1007/BF00469176 (Original work published 1987)