Luebkeman, Chris H. Support and Connection Types. MIT.edu Architectonics: The Science of Architecture. MIT.edu. [3 February 2013]. (原始内容存档于28 October 2012).
Luebkeman, Chris H. Support and Connection Types. MIT.edu Architectonics: The Science of Architecture. MIT.edu. [3 February 2013]. (原始内容存档于28 October 2012).