Please add De Gruyter's Building Types Online to the CZ.

The database Building Types Online is a resource for the study and practice of architectural design. It is based on Birkhäuser’s high international standing in professional architecture books, on the knowledge of the authors and editors who are leading experts in their fields, as well as on the technical quality of the illustrations. The database offers exclusive and unparalleled, highly flexible and detailed search and browse access to the contents of the Birkhäuser program on building types. All content was written and selected by internationally renowned authors in architectural design.

Vendor website: https://bdt.degruyter.com/