1. Arndt, J., Backlund, E.-O., Dahlin, H., Ekström, P., 1975: A computer controlled dose planning system for irradiation of small volumes of the brain with a multi cobalt unit. Proc. 3rd Congr. Soc. Radiol. Europ., Edinburgh.
2. Backlund, E.-O., 1969: Stereotaxic treatment of craniopharyngiomas. In Nobel Symposium 10: Disorders of the skull base region. pp. 237–244. Eds. Hamberger, C.-A., Wersä. 11, J. Stockholm: Almgvist & Wiksell.
3. Backlund, E.-O., 1973: Studies on craniopharyngiomas. III: Stereotaxic treatment with intracystic yttrium-90. Acta Chir. Seand. 139, 237–247.
4. Backlund, E.-O., 1977: Treatment of craniopharyngiomas—a 10 year material, 1966–1975. Proc. 6th Int. Congr. Neurol. Surg., Sao Paulo.
5. Backlund, E.-O., Rähn, T., Sarby, B., de Schryver, A., Wennerstrand, J., 1972 a: Closed stereotaxic hypophysectomy by means of 60Co gamma radiation. Acta Radiol. (Ther. Phys. Biol.) 11, 545–555.