Hanusch M. A $C^k$-seeley-extension-theorem for Bastiani’s differential calculus. Canadian Journal of Mathematics. 2023;75(1):170-201. doi:10.4153/s0008414x21000596

Graczyk P, Luks T, Sawyer P. Potential kernels for radial Dunkl Laplacians. Canadian Journal of Mathematics. 2022;74(4):1005-1033. doi:10.4153/s0008414x21000195

Rösler M, Voit M. Partial Characters and Signed Quotient Hypergroups. Canadian Journal of Mathematics. 1999;51(1):96-116. doi:10.4153/cjm-1999-006-6