WIth Professor Skowron at Proceedings of The 6th International Conference on Rough Sets and Current Trends in Computing, Springer-Verlag, Berlin,
Heidelberg (RSCTC ’08). (pp. 448–456), Lecture Notes in Computer Science, vol 5306. Springer, Berlin, Heidelberg. Oct. 22nd, Akron Ohio, 2008.
With Professor's Ras and Skowron in Proceedings of the 7th International Conference on RSCTC,
M. Szezula et al. (EDs) LNAI 6068, Springer Berlin/Heidelberg (aRSCTC ‘10). (pp. 610-619), Warsaw, Poland, 2010.
With Professor Jerzy Grzymała-Busse and Professor Anita Wasilewska (see photo above) at the Proceedings of the 2010 IEEE International Conference on
Granular Computing, (GrC ’10). (pp. 277-282), 14th – 16th August, San Jose, CA, 2010.