Letter Answering to the letter of 03.03.88, the author readdresses to Dr. Boris Berenfeld who will help to arrange a meeting with colleagues in Moscow and Leningrad which have similar interests. (Handwritten text) Date: 05.07.1988 Original document language: English Authors: Andrei Petrovich Ershov Organizations: Royal Danish School of Educational Studies Addressee: Janni Nielsen
