First Name          =Felix
Last Name           =Sadyrbaev
Title               =Prof
Institution         =Daugavpils University
Street Address      =Parades 1
City                =Daugavpils
State               =Latvia
Zip Code            =LV-5400
Telephone           =
FAX                 =
E-mail              =felix@latnet.lv
URL                 =
Title of talk       =Visualization in teaching math. modelling