[1]
V. V. Struzhanov and E. A. Bakhareva, “Mathematical methods in the theory of pure bending of rectangular beams made of weakening material with symmetric stress-strain diagram”, ВМСС, vol. 5, no. 2, pp. 158–167, Jul. 2012, doi: 10.7242/1999-6691/2012.5.2.19.