References
- Barbier , M. 1988 . Heterocycles , 25 : 421
- Barbier , M. 1987 . Liebigs Ann. Chem. , : 545
- Schildknecht , H. , Körning , W. , Siewerdt , R. and Krauss , D. 1970 . Liebigs Ann. Chem. , 734 : 116
- Barbier , M. 1988 . Heterocycles , 27 : 955 This publication is dedicated to the memory of the late Professor Edgar Lederer (1908–1988).