Hoppenbrock, 1985. Fette Seifen Anstrichmittel, 87 (7): 276-278 Document reference Hoppenbrock, K. H., 1985. Double-quality rapeseed for fattening pigs. Fette Seifen Anstrichmittel, 87 (7): 276-278Citation key Hoppenbrock, 1985Datasheets Rapeseeds