Fodor Gábor; Sallay I.; Dutka Ferenc: Quaternary ammonium salts derived of ( - ) lupinine. In: Acta physica et chemica, (2) 1-4. pp. 77-79. (1956)
Fodor Gábor; Sallay I.; Dutka Ferenc: The configuration of retronecine and of related compounds : Stereochemistry of pyrrolizidine alkaloids. Part II. : [Part I.: G. FODOR : Chem. and. Ind., 1424 (1954)]. In: Acta physica et chemica, (2) 1-4. pp. 80-84. (1956)