Closs O, Digranes A (1971). "Rapid identification of prompt lactose-fermenting genera within the familyh Enterobacteriaceae". Acta Pathologica et Microbiologica Scandinavica Section B. 79 (5): 673–8. doi:10.1111/j.1699-0463.1971.tb00095.x. PMID5286215.
Closs O, Digranes A (1971). "Rapid identification of prompt lactose-fermenting genera within the familyh Enterobacteriaceae". Acta Pathologica et Microbiologica Scandinavica Section B. 79 (5): 673–8. doi:10.1111/j.1699-0463.1971.tb00095.x. PMID5286215.