1. A. I. Prilepko, “Inverse problems of potential theory (elliptic, parabolic, hyperbolic, and transport equations),” Math. Notes 14 (5), 990–996 (1973).
2. A. I. Prilepko, D. G. Orlovsky, and I. A. Vasin, Methods for Solving Inverse Problems in Mathematical Physics (Marcel Dekker, New York, 2000).
3. A. I. Prilepko, A. B. Kostin, and V. V. Solov’ev, “Inverse problems of finding a source and coefficients for elliptic and parabolic equations in Hölder and Sobolev spaces,” Sib. Zh. Chist. Orikl. Mat. 17 (3), 67–85 (2017).
4. E. M. Landis and O. A. Oleinik, “Generalized analyticity and some related properties of solutions of elliptic and parabolic equations,” Russ. Math. Surv. 29 (2), 195–212 (1974).
5. W. Wang and L. Zhang, “Backward uniqueness of Kolmogorov operators,” Methods Appl. Anal. 20 (1), 79–88 (2013).