Kachanovsky, N. A., and S. V. Koshkin. “Minimality of Appell-Like Systems and Embeddings of Test Function Spaces in a Generalization of White Noise Analysis”. Methods of Functional Analysis and Topology 5, no. 3 (September 25, 1999): 13–25. Accessed December 17, 2025. https://zen.imath.kiev.ua/index.php/mfat/article/view/94.