MMA2009 P.Code=DaugP ===============------------------------------ First Name =Peteris Last Name =Daugulis Title =Dr Institution =Daugavpils University Street Address =Parades 1 City =Daugavpils State =Latvia Zip Code =LV-5400 Telephone = FAX = E-mail =peteris.daugulis@du.lv URL = Title of talk and AMS Subject Classification=Design and analysis of ODE models with variable time delays for tumour development, 34C23, 34G20, 34K14, 34K18, 34K60, 37G10, 37N25, 92C30,