Spanu, C., Scarano, C., Ibba, M., Pala, C., Spanu, V. and De Santis, E. P. L. (2014) “Microbiological challenge testing for Listeria monocytogenes in ready-to-eat food: a practical approach”, Italian Journal of Food Safety, 3(4). doi: 10.4081/ijfs.2014.4518.