1. Roumieu C., “Sur quelques extensions de la notion de distribution,” Ann. Sci. École Norm. Sup. (3), 77, No. 1, 41–121 (1960).
2. Komatsu H., “Ultradistributions. I: Structure theorems and a characterization,” J. Fac. Sci. Univ. Tokyo Sect. IA Math., 20, No. 1, 25–105 (1973).
3. Komatsu H., “Ultradistributions. II: The kernel theorem and ultradistributions with support in a submanifold,” J. Fac. Sci. Univ. Tokyo Sect. IA Math., 24, No. 3, 607–628 (1977).
4. Ciorânescu I. and Zsidó L., “ω-Ultradistributions and their applications to operator theory,” in: Spectral Theory, Banach Center Publ., Warsaw, 1982, 8, pp. 77–220.
5. Meise R. and Taylor B. A., “Whitney’s extension theorem for ultradifferentiable functions of Beurling type,” Ark. Mat., 26, No. 2, 265–287 (1988).