Stanislav Vasil’evich Emel’yanov: A tribute in honor of his eightieth birthday. (English. Russian original) Zbl 1171.01308
Differ. Equ. 45, No. 5, 625-626 (2009); translation from Differ. Uravn. 45, No. 5, 611-612 (2009).
MSC:
01A70