1. V. V. Bozhydarnyk and H. T. Sulym, Elements of the Theory of Plasticity and Strength [in Ukrainian], Svit, Lviv (1999).
2. K. V. Vasil'ev and H. T. Sulym, "Application of the method of direct cutting-out to the solution of the problem of longitudinal shear of a wedge with thin heterogeneities of arbitrary orientation," Mat. Metody Fiz.-Mekh. Polya, 53, No. 3, 117-126 (2010)
3. English translation: J. Math. Sci., 180, No. 2, 122-134 (2012).
4. K. Vasil’ev, Ya. Pasternak, and H. Sulym, “Antiplane deformation of a square (in plan) body with thin internal inhomogeneity,” Visn. L’viv. Univ., Ser. Mekh.-Mat., Issue 73, 165–176 (2010).
5. K. Vasil’ev and H. Sulym, “Direct method of cutting-out in modeling the stress-strain state of isotropic layered media with thin inhomogeneities under the conditions of antiplane deformation,” Mashynoznavstvo, No. 11–12, 10–17 (2006).