- Author: Hengartner Walter, Theodorescu Radu
- Language: English
- Year: 1974
- Author: W. Hengartner R. Theodorescu
- Language: English
- Year: 1974
- Author: W. Hengartner R. Theodorescu
- Language: English
- Year: 1974
- Author: Lloyd Fisher J. McDonald
- Language: English
- Year: 1978
- Author: Avner Friedman
- Language: English
- Year: 1975
- Author: Steven Vajda
- Language: English
- Year: 1972
- Author: L.E. Maistrov Samuel Kotz
- Language: English
- Year: 1974
- Author: K. V. Mardia
- Language: English
- Year: 1972
- Author: E.J. McShane
- Language: English
- Year: 1975
- Author: Gopal Mohanty
- Language: English
- Year: 1980