1. Karapetiants, N. and Samko, S. Equations with Involutive Operators (Birkhäuser, Boston, Basel, Berlin, 2001).
2. Avsyankin, O. G. and Karapetiants, N. K. “The Projection Method in the Theory of Integral Operators with Homogeneous Kernels,” Math. Notes 75, No. 1–2, 149–157 (2004).
3. Avsyankin, O. G. “On Noetherian Property of Multidimensional Integral Operators with Homogeneous and Quasi-homogeneous Kernels,” Russian Mathematiks (Iz. VUZ) 50, No. 11, 1–8 (2007).
4. Avsyankin, O. G. “On the Spectra and Singular Values of Multidimensional Integral Operators with Bihomogeneous Kernels,” Sib. Math. J. 49(3), 389–394 (2008).
5. Avsyankin, O. G. “On a C*-algebra Generated by Multidimensional Integral Operators with Homogeneous Kernels and Multiplicative Shift Operators,” Dokl. Math. 77(2), 298–299 (2008).