books.google.ruhttp://books.google.ru/books/about/Encyclopedia_of_Fermented_Fresh_Milk_Pro.html?hl=ru&id=ucPf5kCNGjMC&utm_source=gb-gplus-shareEncyclopedia of Fermented Fresh Milk Products: An International Inventory of Fermented Milk, Cream, Buttermilk, Whey, and Related Products