- Author: Jacoud Romain, Gautreau Ronald, Savin William
- Language: French
- Year: 1986
Löwdin Volume
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- Author: John R. Sabin and Erkki J. Brändas (Eds.)
- Year: 2017
- Author: Carlile C.J, Willis B.T.M
- Language: English
- Year: 2013