on the death of Vitold Lipsky (1949-1985)(in Polish with russian translation)

on free-lance translation from Polish of the book "Combinatorics for Programmers" by V. Lipsky

Comparison of the contents of the books "Combinatorics for Programmers" and "Graph Theory Application in Programming"

by the editor of russian translation of the book "Combinatorics for Programmers" by V. Lipsky (draft and typewritten copies)

of the foreword, index and some other pages