Chrisopher Alexander
https://archive.org/stream/APatternLanguage/A_Pattern_Language#page/n13/mode/2up
J. Chris Jones
http://www.smsys.com/pub/dsgnmeth.pdf
http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471284963.html
https://en.wikipedia.org/wiki/John_Chris_Jones
Horst Rittel
http://www.uctc.net/mwebber/Rittel+Webber+Dilemmas+General_Theory_of_Planning.pdf
https://en.wikipedia.org/wiki/Horst_Rittel
Chanpory Rith andHugh Dubberly
http://www.dubberly.com/articles/why-horst-wj-rittel-matters.html