1. : Electronic Theory of Organic Chemistry; S. 116, Clarendon Press, Oxford 1949.
2. The Passerini Reaction. III. Stereochemistry and Mechanism1,2
3. Sammelref.: : The Chemistry of Cyanogen Compounds, S. 393, Reinhold Publ. Corp., New York 1947;
4. in „Methoden der Organischen Chemie” (Houben-Weyl) 8, S. 351, Verlag Georg Thieme, Stuttgart 1952.