?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Metz%2C+J.A.J.&rft.aulast=Metz&rft.aufirst=J.A.J.&rft.date=July+1995&rft.title=Velocities+of+epidemic+spread&rft.btitle=Epidemic+Models%3A+Their+Structure+and+Relation+to+Data&rft.genre=bookitem