IUTAM Symposium on Relations of Shell Plate Beam and 3D Models [electronic resource] : Proceedings of the IUTAM Symposium on the Relations of Shell, Plate, Beam, and 3D Models, Dedicated to the Centenary of Ilia Vekua’s Birth, held in Tbilisi, Georgia, April 23-27, 2007 / edited by George Jaiani, Paolo Podio-Guidugli.