(2014-06-06) Bernard Vatant: Annual review : the vocabulary is temporary offline, this should be fixed any time according to the publisher.
(2013-05-22) Bernard Vatant: A small, quite old vocabulary. Relies on a rather vague notion of "RDF term". Certainly made obsolete by more recent and more expressive ways to handle the terminological information, such as lvont or skosxl.
(2014-07-16) Bernard Vatant: Like a few early RDF vocabularies, this one is explicitly importing RDFS and OWL. This is not considered a good practice anymore.