1. Becker, R. J. and Beuttner, D. R., ‘Shear tests of extruded hollow core slabs’,PCI J. 30(2) (1985) 40–54.
2. Beuttner, D. R., ‘Shear Capacity in Composite Spancrete Hollow Core Slabs’, Final Report to the Spancrete Manufacturers Association (1974).
3. Kamerling, J. W. and Fijneman, H. J., ‘Onderzoek Holle Prefab Vloerplaten’ (Eindhoven University of Technology, The Netherlands, 1980).
4. Heron;J. C. Walraven,1983
5. FIP Recommendations, ‘Precast Prestressed Hollow Core Floors’ (FIP, 1988).