- Author: Джрбашян М.М.
- Language: Русский
- Year: 1966
- Author: Luigi Bianchi
- Language: Italian
- Year: 1916
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- Language: Русский
- Year: 1951
- Author: Michael Schneider Yum-Tong Siu
- Language: English
- Year: 2000
- Author: Lester R Ford
- Language: English
- Year: 1929
- Author: John B Conway
- Language: English
- Year: 1978
- Author: Murray Spiegel
- Language: English
- Year: 1964
- Author: Carl Ludwig Siegel
- Language: English
- Year: 1971
- Author: Carl Ludwig Siegel
- Language: English
- Year: 1969