Hello, I think I've experienced a severe bug here. Consider the following: \setuphead [chapter][% referenceprefix={chapter}, ] ... \cite[xxx] ... \startpublication[ k={xxx}, t={...}, a={...}, y={...}, ] ... \stoppublication \startchapter [title={BIBLIOGRAPHY}] \whitespace \placepublications \stopchapter will render [[error 2]] in place of `\cite[xxx]' because of `referenceprefix' in `\setuphead'. Why? I don't believe `referenceprefix' in `\setuphead' should have something to do with `\cite' at all. Thankfully, it's pretty rare that one uses `chapter' for bibliography, but still I think it's better to fix this. For instance, right now the following works fine for me: \setuphead [chapter][% referenceprefix={chapter}, ] \setuphead [title][% referenceprefix={}, ] ... \cite[xxx] ... \startpublication[ k={xxx}, t={...}, a={...}, y={...}, ] ... \stoppublication \starttitle [title={BIBLIOGRAPHY}] \whitespace \placepublications \stoptitle NOTE: It's extremely important to explicitly do `referenceprefix={}' for `title' because somehow `title' inherits `referenceprefix={chapter}' from `chapter'; and therefore, not doing `referenceprefix={}' will again result in [[error 2]] in place of `\cite[xxx]'. Looking forward to your feedback. Kind regards, Alexander