1. Anon. 2011a National Centre for Biotechnology Information, U.S. National Library of Medicine: Lysine decarboxylase Lactobacillus -Gene result NCBI http://www.ncbi.nlm.nih.gov/gene?term=lysine%20decarboxylase%20lactobacillus
2. Anon. 2011b European Bioinformatics Institute, European Molecular Biology Laboratory: IPR011193 Ornithine/lysine/arginine decarboxylase http://www.ebi.ac.uk/interpro/DisplayIproEntry?ac=IPR011193
3. Anon. 2011c National Centre for Biotechnology Information, U.S. National Library of Medicine: Lysine decarboxylase Bifidobacterium -Gene result http://www.ncbi.nlm.nih.gov/gene?term=lysine%20decarboxylase%20bifidobacterium
4. Anon. 2011d European Bioinformatics Institute, European Molecular Biology Laboratory: Lysine decarboxylase activity http://www.ebi.ac.uk/ena/data/view/ADP36280
5. Biogenic amine production by Lactobacillus;Arena;Journal of Applied Microbiology,2001