1. Bardone, M. C. et al.: Benzodiazepine-like central effects of RP 27.267, a dihydro 7-oxo-5H-pyrrolo 3,4-b pyrazine derivate, Abstracts of 7th International Congress of Pharmacology, Paris, 1978
2. Giercksky, K.-E., Wickstrøm, E.: Clinical experiences with a new tranquilizer, Zopiclone (RP 27.267) in surgical patients, the optimal dosages for situational insomnia. (In press)
3. Monier, P., Woehrle, R.: Effects of zopiclone on the EEG of healthy volunteers. Double-blind comparison versus placebo and nitrazepam, Abstracts of the 11th CINP, Vienna, 1978
4. Rhóne-Poulenc: 27.267 RP ? zopiclone, Paris, 1977
5. Bond, A. J., Lader, M. H.: Residual effects of flurazepam. Psychopharmacologia32, 223?235 (1973)