Dear gang, Chapter numbers are indicated roman numerals (conversion=R), all subsectioning by decimal numerals. See attached and below: ======= \setuphead[chapter] [alternative=normal,conversion=R] \setuphead[subsection][alternative=text] \setuphead[subsection][distance=0em, textdistance=0.7em, sectionstopper=., criterium=local] \definestructureconversionset[OLIE][n,R,n,n,n,n][n] \setupreferencestructureprefix [section] [default] [prefixstopper=\zerowidthspace, numberconversionset=OLIE] % \setupreferencestructureprefix [chapter] [default] % [prefixstopper=\zerowidthspace, % numberconversionset=OLIE] \setupwhitespace[big] \starttext \startchapter[title={First},reference={}] \startsubsection[title={},reference={reference1}] \input ward See \in{Sections}[reference3] and \in{Section}[reference4]. \stopsubsection \startsubsection[title={},reference={reference2}] \input ward \stopsubsection \stopchapter \startchapter[title={Second}] \startsubsection[title={},reference={reference3}] \input ward \stopsubsection \startsubsubsection[title={},reference={reference4}] \input ward \stopsubsubsection \startsubsection[title={},reference={reference5}] \input ward See \in{Sections}[reference1] and \in{Section}[reference2]. \stopsubsection \stopchapter \stoptext ======= So, e.g., Chapter II, Subsection 1, Subsubsection 1 In the references we get 2.1.1 But what we want is II.1.1 Adding the following to the preamble doesn't appear to work: \definestructureconversionset[OLIE][n,R,n,n,n,n][n] \setupreferencestructureprefix [section] [default] [prefixstopper=\zerowidthspace, numberconversionset=OLIE] What am I missing? Thanks in advance for any guidance. Best wishes Idris -- Idris Samawi Hamid, Professor Department of Philosophy Colorado State University Fort Collins, CO 80512