Mikhail Moshkov. Classification of Infinite Information Systems. In Wojciech Ziarko, Y. Y. Yao, editors, Rough Sets and Current Trends in Computing, Second International Conference, RSCTC 2000 Banff, Canada, October 16-19, 2000, Revised Papers. Volume 2005 of Lecture Notes in Computer Science, pages 199-203, Springer, 2000. [doi]