On Greenfield north of Ten Mile there are three stores that have Russian offerings. Gold International Bakery has wonderful bread but not black bread. The New York International is next door, not sure about their bread. Just across the driveway from Gold is the One Stop Kosher Market, which does have a bakery. A lot of Russian clientele, many from Bielorusse. You could also try Zieman's, just across Greenfield. For sure you will find the black bread at one of these places. Husband won't eat it so I never look for it.