1. Amidacetale, Darstellung und Verwendung
2. (b) Carboxylic Ortho Acid Derivatives, Academic Press, New York-London 1969
3. C-N-Verbindun;Simchen,1974
4. (d) in The Chemistry of Acid Derivatives, Supplement B, Part 1, Ed. Wiley & Sons, Chichester, New York, Brisbane, Toronto 1979, S. 533