
- Author: Christopher G. Small
- Language: English
- Year: 2007

- Author: Christopher G. Small
- Language: English
- Year: 2007

- Author: Bernard R. Gelbaum
- Language: English
- Year: 1992

- Author: Bernard R. Gelbaum
- Language: English
- Year: 1992

- Author: E.J. Barbeau
- Language: English
- Year: 2003

- Author: Peter Komjath Vilmos Totik
- Language: English
- Year: 2006

- Author: Peter Komjath Vilmos Totik
- Language: English
- Year: 2006