Euler, L. (1774) De Pressione ponderis in planum cui incumbit. Novi Commentarii academiae scientiarum Petropolitanae, 18, 289-329.
 Benvenuto, E. (1984) A Brief Outline of the Scientific Debate Which Preceded the Works of Castigliano. Meccanica, 19, 19-32.
 Fontana, M. (1792) Della Dinamica, libri tre, 2, Pavia. (See specially pages 34-45, 95, 98.)
 Navier, Claude-Louis-Marie-Henri, Summary of Lessons Taught at the School of Civil Engineering on the Application of Mechanics to the Establishment of Structures and Machines. First Part, 10th Edition, Corrected and Augmented. Carilian-Goeury, Paris, 1833.
 Bois, A.J.D. (1902) The Mechanics of Engineering. John Wiley & Sons, Chapman & Hall, London.
 Patnaik, G.R.H.S.N. and Hopkins, D.A. (2004) Integrated Force Method Solution to Indeterminate Structural Mechanics Problems. National Aeronautics and Space Administration, Cleveland, 104-108.