MMA2009 P.Code=GarbT
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First Name          =Tatjana
Last Name           =Garbuza
Title               =
Institution         =Daugavpils University
Street Address      =Parades 1
City                =Daugavpils
State               =Latvia
Zip Code            =LV-5400
Telephone           =26798464
FAX                 =
E-mail              =garbuza@inbox.lv
URL                 =
Title of talk and AMS Subject Classification=