1. An economic evaluation of the fermentative production of lactic acid from wheat flour;Akerberg;Bioresource Technology,2000
2. A History of Lactic Acid Making;Benninga,1990
3. Bigg DM, Sinclair RG, Lipinsky ES, Litchfield JH, and Allen BR (2004). Degradation Control of Environmentally Degradable Disposable Materials. US Patent 6,740,731.
4. Carlson TL and Peters EM (2002) Low pH Lactic Acid Fermentation. US Patent 6,475,759.
5. Title 21, 172.844, 172.846, 172.848, 172.852, 184.1061, 184.1207, 184.1311, 184.1639, 184.1768,2006