1T. Kolendowicz, Theory of Structures for Architects, Arkady, Warszawa, 1993. (in Polish).
2S. Pyrak, K. Szulborski, Structural Mechanics for Architects, Examples of Calculations, Arkady, Warszawa, 1994. (in Polish).
3J. Przewl6cki, J. G6rski, Basis of Theory of Structures, Arkady, Warszawa, 2006. (in Polish).
4E. Allen, W. Zalewski, Boston Structures Group, Form and Forces, Designing Efficient, Expressive Structures, John Wiley & Sons Inc., Hoboken, New Jersey, 2010.
5S.P. Timoshenko, History of Strength of Materials, Arkady, Warszawa, 1966. (in Polish).
6W. Nowacki, Theory of Structures, State Scientific Publishing House, Warszawa, 1960. (in Polish).
7Z.S. Makowski, Analysis, Design and Construction of Double-Layer Grids, Applied Science Publishers, London, 1981.
8Z. Dylag, E. Krzemifiska-Niemiec, F. Filip, Theory of Structures, State Scientific Publishing House, Warszawa, 1989. (in Polish).
9O.C. Zienkiewicz, R.L. Taylor, The Finite Element Method, Oxford Press, UK, 2000.
10T. Lewiflski, On algebraic equations of elastic trusses, frames and grillages, Journal of Theoretical and Applied Mechanics 39 (2) (2001) 307-322.
