Russian 50k maps of France, any ideas how to find it?



I am a poor french man and so use altavista babelfish to read this website (!)... I am searching for days the russian maps 50k for France... I know it exists but I can't find it.
Could you help me in my search?

Thanks a lot

It is post-USSR. To find this maps is hopeless business. Because, they are secret by militarians. And all websites, devoted by maps, are carefully checking by them. Search this maps in other sites, outside post-USSR.
look at this