[NTG-context] bib: no booktitle for @inbook

Hi, when I insert a citation of type @inbook, it only shows the "title", not however the "booktitle". I tried ams, num, apa and apa-de. Example entry: @inbook{Coles2007, address = {Berkeley, CA}, author = {Coles, Michael}, booktitle = {Pro T-SQL 2005 Programmer’s Guide}, doi = {10.1007/978-1-4302-0387-2}, isbn = {978-1-59059-794-1}, pages = {323--341}, publisher = {Apress}, title = {{SQL Metadata}}, year = {2007} } On a side-node: in bibl-apa-de.tex: \def\insertchap#1#2#3% {\insertchapter {#1\insertbibtype{}{\ }{chapter\ }}{#2}% {#3}} ^^^^^^^ ... should read "Kapitel". Best Regards, Andreas.