1. Cocca, A. A., in Proceedings of the eleventh colloquium on the law of outer space. Davis (California): The University of California School of Law, 1969, pp. 379–380
2. Fasan, E., in Proceedings of the eleventh colloquium on the law of outer space. Davis (California): The University of California School of Law, 1969, p. 381
3. Cocca, A. A., Teorı́a del Derecho Interplanetario. Buenos Aires. 1957, pp. 34
4. Arnould, J., Ad Majorem Gloriam Dei: Theological aspects of SETI, a paper expounded in Oslo, October 6, 1995