- An Engineers Guide to: Economical Concrete Floor Systems:
http://www.nebrconcagg.com/assets/PromotionPages/Structural/structural%20%283%29.pdf - Current Trends in Economical Concrete Construction:
http://www.structurearchives.org/article.aspx?articleID=272 - Portland Cement Association (PCA)
http://www.cement.org/home - Portland Cement Association (PCA) Publications
http://www.cement.org/think-harder-concrete-/buildings-structures/design-aids/reinforced-concrete - Concrete Reinforcing Steel Institute (CRSI)
http://www.crsi.org/index.cfm - Concrete Reinforcing Steel Institute (CRSI) Concrete Structural Floor Systems
http://www.crsi.org/index.cfm/engineering/floor - COLUMBIA UNIVERSITY Graduate School of Architecture
http://www.columbia.edu/cu/gsapp/BT/BSI/GRAVSYS/grav1.html - Famous concrete buildings
http://picsbox.biz/key/famous%20concrete%20buildings#