Microbiology of the food chain - Polymerase chain reaction (PCR) for the detection of food-borne pathogens - Detection of botulinum type A, B, E and F neurotoxin-producing clostridia (ISO/TS 17919:2013); German version CEN ISO/TS 17919:2013
Deutsches Institut Fur Normung E.V. (German National Standard) , 03/01/2014
