Autore:Vladimir Galaktionovič Korolenko
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Vladimir_Korolenko_bw.jpg/140px-Vladimir_Korolenko_bw.jpg)
Note
- ↑ Writers of St. Petersburg. XX century
- ↑ Historical Encyclopedia of Siberia
- ↑ Chuvash encyclopedia
- ↑ Encyclopædia Britannica
- ↑ Brockhaus Enzyklopädie
- ↑ Bibliothèque nationale de France
- ↑ Internet Speculative Fiction Database
- ↑ Gran Enciclopèdia Catalana