Apology for the lond silence; telling about his new idea of "programming Lexicon" as a conceptual framework for program development

with corrections to the memorial article about Klaus Samelson

The author is glad that Ershov acepted the invitation to lecture at Marktoberdorf Summer School and suggests the visit to the Technical University to give some lectures; enclosed is a copy of the English translation of "Andrei and the Monster"

Thanks for the received book, request to send an invitation for a one-month visit to Germany next year