F.  Gregor, ?New species of Mycetaulus Loew (Piophilidae) and Meoneura Rond. (Milichiidae) from Hindukush (Diptera)?, Acta entomologica Bohemoslovaca, vol. 68, pp. 52-57, 1971.

F.  Gregor, ?Two new species of the genus Meoneura Rondani from Czechoslovakia?, Acta entomologica Bohemoslovaca, vol. 70, pp. 137-141, 1973.

F.  Gregor, ?Celad: Carnidae?, in Diptera Slovenska, II: Cyclorrhapha, Veda, Bratislava: , 1986, pp. 183-184.

F.  Gregor, ?Celad: Milichiidae?, in Diptera Slovenska, II: Cyclorrhapha, Veda, Bratislava: , 1986, pp. 184-185.

F.  Gregor, ?Carnidae?, in Enumeratio insectorum Bohemoslovakiae - Check list of Czechoslovak insects II (Diptera)., J.  Jezek, Ed. 1987, p. 261.

F.  Gregor, ?Milichiidae?, in Enumeratio insectorum Bohemoslovakiae - Check list of Czechoslovak insects II (Diptera)., J.  Jezek, Ed. 1987, p. 262.

F.  Gregor and Daniel, M., ?A contribution to the knowledge of fauna of synanthropic flies in the East Hindukush?, Folia parasitologica, vol. 18, pp. 347-356, 1971.

F.  Gregor and Daniel, M., ?To the knowledge of fauna of synanthropic flies of the Nepal Himalaya?, Folia parasitologica, vol. 23, pp. 61-68, 1976.

F.  Gregor and Papp, L., ?Czechoslovak species of the genus Meoneura with description of Meoneura moravica sp. n?, Acta entomologica Bohemoslovaca, vol. 78, pp. 199-207, 1981.

F.  Gregor and Povolný, D., ?Beitrag zur Kenntnis synanthroper Fliegen Bulgariens?, Práce Brnenské základny Cescoslovenske akademie ved, vol. 7(394), pp. 377-384, 1959.

F.  Gregor and Povolný, D., ?Beitrag zur Kenntnis der synanthropen Fliegen Ungarns?, Acta Societatis Entomologicae Cechosloveniae, vol. 57, pp. 158-177, 1960.

F.  Gregor and Povolný, D., ?Resultate stationärer Untersuchungen von synanthropen Fliegen in der Umgebung einer Ortschaft in der Ostslowakei?, Zoologické listy, vol. 24, pp. 17-44, 1961.

J.  Rohacek and Gregor, F., ?Nové nebo faunisticky zajímaví nálazy druhu celedi Milichiidae a Carnidae (Diptera) z Ceskoslovenska?, Casopis Slezského musea v Opave, vol. 33, pp. 17-21, 1984.