Quite commonly, the same protoplasm gets released under a variety of different names. Some nurseries have difficulty selling varieties with Russian names and so make up their own. One Green World, for example, sells a Ukrainian variety they call 'Crimson Sky' which may be the same as the plant you are looking for (or a reasonable substitute for it). They also sell 'Favorite,' another hardy Russian and 'Sochi Dwarf' which produces very small fruit.