Hello (Taco), I have no idea when this turned into a problem (the files that I'm recycling are 2 years old, so it must have worked at that time), but percentage sign seems to have lost its original meaning inside publication: \usemodule [bib] \startpublication[k=mybook,t=book,a=Last Name] \author{First Name}[F.~N.]{}{Last Name} \title{Title} % \pubyear{2007} % This should have been a comment \stoppublication \starttext \nocite[mybook] \placepublications[criterium=all] \stoptext I have put comments out of the definitions now, so it's not critical for me, but it might cause problems to others as well. Mojca