Jakob, there isn't a single data element that represents the FRBR Work -- Work is a complexity, and generally needs at least a creator and a title, more in some cases. However, the Work title is not the same as the title of the "instance" and most current library records do NOT have a Work title (and thus are not easy to fit into FRBR). The nearest thing to a work "data element" that we have is an author/title uniform title. Thus, on a MARC or MODS record for: Mann, Thomas, 1875-1955 Joseph and his brothers You *should* have (but often don't) a uniform/Work title: [Joseph und seine Bru?der] And a corresponding authority heading in the authority file: Mann, Thomas, 1875-1955. Joseph und seine Bru?der. kc p.s. actually, it's even messier than that, but I simplified for the sake of clarity. Quoting Jakob Voss <[log in to unmask]>: > Hi, > > I tried to create a controlled link for the titleInfo element and do > not fully understand what a controlled 'title' exactly means in MODS. > It looks like <titleInfo> is a good place to link a record to a FRBR > Work entity, right? > > <titleInfo valueURI="http://www.librarything.com/work/1577043"> > <nonSort>The </nonSort> > <title>C programming language</title> > </titleInfo> > > If title authorities do not reference works, what do they reference > instead, and where can I best put an authority link to a FRBR work > in MODS? > > Thanks! > Jakob > > -- > Jakob Voß <[log in to unmask]>, skype: nichtich > Verbundzentrale des GBV (VZG) / Common Library Network > Platz der Goettinger Sieben 1, 37073 Göttingen, Germany > +49 (0)551 39-10242, http://www.gbv.de > -- Karen Coyle [log in to unmask] http://kcoyle.net ph: 1-510-540-7596 m: 1-510-435-8234 skype: kcoylenet