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- Year: 1948
- Author: Einar Hille
- Language: English
- Year: 1997
- Author: Morris Tenenbaum Harry Pollard
- Language: English
- Year: 1985
- Author: A. R. Forsyth
- Language: English
- Year: 1996
- Author: Andrew Russell Forsyth
- Language: English
- Year: 1959
- Author: Harold T. Davis
- Language: English
- Year: 2010
- Author: Stefan Bergman Menahem Schiffer
- Language: English
- Year: 1953
- Author: Richard Bellman
- Language: English
- Year: 2008