S. N. Nowak, “Regularity theory for nonlocal equations with VMO coefficients”, Annales de l'Institut Henri Poincaré C, Analyse non linéaire, 2022, 40, 61-132.
T. Kuusi, S. N. Nowak, and Y. Sire, “Gradient regularity and first-order potential estimates for a class of nonlocal equations”, arXiv: 2212.01950, 2022.
S. N. Nowak, “Higher Hölder regularity for nonlocal equations with irregular kernel”, Calculus of Variations and Partial Differential Equations, 2021, 60, : 24.
S. N. Nowak, in Analysis and Partial Differential Equations on Manifolds, Fractals and Graphs (Eds.: A. Grigor’yan, Y. Sun), De Gruyter, Berlin, 2021, p. 459-492.
S. N. Nowak, “Hs,p regularity theory for a class of nonlocal elliptic equations”, Nonlinear Analysis - Theory, Methods and Applications, 2020, 195, : 111730.