Pereslavl, 26 January - 5 February 1999.

This school was organized in cooperation with
Pereslavl State University and took
place in Pereslavl-Zalessky in January 26 - February 5, 1999.

There were two sets of courses: one for beginners and another for
advanced participants (presumably members of the previous school).
The next short courses were offered for the beginners:

For the advanced participants the following courses was offered:

- Prof. J. Krasil'shchik:
**Geometry of differential equations**, - Prof. A. Vinogradov:
**First order differential calculus on manyfolds and cohomological theory of integral**, - A. Verbovetsky:
**Introduction to homological algebra and differential algebraic topology.**

Questions and suggestions should go to diffiety @ tiros.dmi.unisa.it