- Author: Л. А. Коган (ред.) Ю. Т. Козлов М.Д. Ситник и др.
- Language: Русский
- Year: 1991
- Author: Коган А.Я.
- Language: Русский
- Year: 1997
Работа пианиста.
djvu
- Author: Коган Г.М.
- Language: Русский
- Year: 1979
Работа пианиста.
pdf
- Author: Коган Г.М.
- Language: Русский
- Year: 1963
- Author: Коган М.С.
- Language: Русский
- Year: 1927
- Author: Коган Б.И.
- Language: Русский
- Year: 2008
- Author: Коган Б.И. Мирошин И.В. Малышкин Д.А.
- Language: Русский
- Year: 2012
- Author: Коган Ш.М.
- Language: Русский
- Year: 2009
- Author: Коган Д.А.
- Language: Русский
- Year: 2008
