1. Block P (2009) Thrust network analysis: exploring three-dimensional equilibrium. PhD thesis, Massachusetts Institute of Technology
2. Block P, Ochsendorf J (2007) Thrust network analysis: a new methodology for three-dimensional equilibrium. J IASS 48(3):1–8
3. Block P, DeJong M, Ochsendorf J (2006) As hangs the flexible line: equilibrium of masonry arches. Nexus Netw J 8(2):13–24
4. Bow R (1873) Economics of construction in relation to framed structures. ICE Publishing, London
5. Chan ASL (1960) The design of Michell optimum structures. Ministry of Aviation Aeronautical Research Council Report December (3303)