1. ASCE (American Society of Civil Engineers). ASCE/SEI Standard 41-06: Seismic rehabilitation of existing buildings (including Supplement 1). 2007, American Society of Civil Engineers, Reston, Virginia.
2. Bigaj A. , Walraven J. C.Size Effect on Rotational Capacity of Plastic Hinges in Reinforced Concrete Beams, 1993, Comité Euro-international du Béton, Lausanne, Switzerland, 7–23, CEB Bulletin d' Information No. 218.