Letter The author informs about preparation of a seminar, asks to recommend some soviet scientists for participation in it. He will appreciate deeply if Andrei Petrovich will agree to take part in a seminar personally. Date: 27.04.1985 Original document language: russian Authors: Blagovest Sendov Persons: Igor V. Pottosin, V. N. Kasyanov Addressee: Andrei Petrovich Ershov