on the PLI WG activities in 1986

of the PLI WG session "Programming languages implementation" (November 2-5, 1987, Tbilisi)

of the PLI WG session

of paper by T. Lel'chuk "Polar language and its implementation"

to the rector of Yaroslavl' state university concerning organization of the WG session in September 1988

to the First secretary of Yaroslavl' Regional Party committee concerning organization of the PLI WG session in September 1988

Request to assist in holding the PLI WG session on the base of the BSSR AS Institute of Mathematics and in accommodating 45 nonresident participants in September 1989