- Author: Pogorzelski Witold Adam
- Language: English
- Year: 1994
- Author: Pogorzelski Witold A., Wojtylak Piotr
- Language: English
- Year: 2008
- Author: Pogorzelski Witold
- Language: Polish
- Year: 1952
- Author: Wojtylak Piotr, Pogorzelski Witold
- Language: English
- Year: 1982