A new class of WA-systems of Kravchenko-Rvachev functions. (English. Russian original) Zbl 1175.78035
Dokl. Math. 75, No. 2, 325-332 (2007); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 413, No. 3, 320-328 (2007).