Selection of commercial protective cultures to be added in Sardinian fermented sausage to control <em>Listeria monocytogenes</em> oleh Giuliana Siddi, Francesca Piras, Vincenzo Spanu, Maria Pina Meloni, Rita Sanna, Nadia Carta, Marco Errico, Mario Cuccu, Enrico Pietro Luigi De Santis, Christian Scarano