Erratum to "Liveness of an extended S3PR " [Automatica 46 (2010) 1008-1018]

1. A new definition of circular waitsInLiu,Li,andZhou(2010),thedefinitionofacircularwait(Definition16inLiuetal.(2010))isdirectlyadoptedfromLewis,Gurel,Bogdan,Doganalp,ˇ andPastravanu(1998).However,itisnotappropriatethattheconceptdefinedinordinaryPetrinetsissimplisticallyusedinthecontextofgeneralizedoneswithoutanyextension.Definition 1 (Lewisetal.,1998). Acircularwait(CW)isasetofresourceplacesC