1. R. S. Strichartz, “Convolutions with Kernels Having Singularities on a Sphere,” Trans. Amer. Math. Soc. 148(2), 461–471 (1970).
2. A. Miyachi, “On Some Singular Fourier Multipliers,” J. Fac. Sci. Univ. Tokyo, Sec. IA Math. 28(2), 267–315 (1981).
3. A. Miyachi, “Notes on Fourier Multipliers for H p, BMO and the Lipschitz Spaces,” J. Fac. Sci. Univ. Tokyo, Sec. IA Math. 30(2), 221–242 (1983).
4. V. A. Nogin and D. N. Karasev, “On the L-Characteristic of Some Potential-Type Operators with Radial Kernels, Having Singularities on a Sphere,” Fractional Calculus & Appl. Anal. 4(3), 343–366 (2001).
5. D. N. Karasev and V. A. Nogin, “On the Boundness of Some Potential-Type Operators with Oscillating Kernels,” Math. Nachr. 278(5), 554–574 (2005).