5Ivkovic M., Perisic Z., External prestressing in two-chord large span structural systems, ACI publication, SP120,1990, pp. 185-206.
6M. Saitoh, Hybrid Form-Resistance Structure, Shell, Membrane and Space Frame, Pro. IASS Symposium, Osaka, 1986, Vol.2:pp. 257-264.
7Ivkovic M., Perisic Z., Acic M., etc., Design and Construction of the "Belgrade Arena" - The new sports hall roof structure in Belgrade, Proceedings IMS, Vol. XXI, No.2, Belgrade 1994: pp.7 -26.
