He was thinking about typology and from the roots and meanings of architectural varieties. Claussen’s Main curiosity is definitely the Ausstattung, the furnishings and embellishment that created church buildings liturgically practical. To him, medieval churches are certainly not autonomous formal or structural creations but phases for clerical and papal Exhibit. http://damienjonmk.blogadvize.com/5564603/kirchen-rom-for-dummies