Sorry, I don't speak Czech, but look (the article is in Russian):
http://www.redstar.ru/2007/08/08_08/3_02.html
This is "Volkosob", also made in Russia
And this is not a privаte experiment, they talk about new breed! (
http://ru.wikipedia.org/wiki/%D0%92%...81%D0%BE%D0%B1 )