Imidazo[4,5-c]pyridines inhibit the in vitro replication of the classical swine fever virus and target the viral polymerase., Vrancken, R, Paeshuyse J, Haegeman Andy, Puerstinger G, Froeyen M, Herdewijn P, Kerkhofs Pierre, Neyts J, and Koenen F. , Antiviral Res, 2008 Feb, Volume 77, Issue 2, p.114-9, (2008)