1. P. H. Delwaide, M. Ylieff, A. M. Gyselinck-Mambourg, L. Dijeux, A. Hurlet, and A. Agnoli (1975 ): Effects du piracetam sur la demence senile . In: Proceedings of "Nooanaleptic and nootropic drugs", Rome, Sept. 17, pp.197 -110 .
2. S. J. Dimond, and A. Agnoli (1975 ): Drugs to improve learning performance and verbal registration in man . In: Proceedings of "Nooanaleptic and nootropic drugs", Rome, Sept. 17, pp.107 -110 .