Children's risks on their way to school : the example of TallinnRõivas, Tiia; Antov, Dago; Oja, Tõnu; Abel, Kristiina; Sepp, EdgarManagement of Natural Resources, Sustainable Development and Ecological Hazards. III2012 / p. 529-538 https://www.witpress.com/elibrary/wit-transactions-on-ecology-and-the-environment/148/22999

Ecological economics as a tool for resource based nature conservation management in EstoniaEhrlich, Üllas2007 http://dspace.ut.ee/handle/10062/2359 https://www.ester.ee/record=b2247893*est

Modeling of nutrient cycling in riparian ecosystemsOja, Tõnu; Mander, ÜloGIS-Baltic Sea States '93 : exhibition, conference, Tallinn, Estonia, 29 November - 1 December 1993 : abstract book, catalogue1993 / p. 33

On conformal geospatial transformations with complex polynomialsLippus, Jüri; Oja, TõnuProceedings of the Estonian Academy of Sciences2012 / p. 65-70 : ill https://www.kirj.ee/public/proceedings_pdf/2012/issue_1/Proc-2012-1-65-70.pdf

The changing landscapes of transitional economies : the Estonian coastal zoneKull, Ain; Idavain, Jane; Kull, Anne; Oja, Tõnu; Ehrlich, Üllas; Mander, ÜloMultifunctional land use : meeting future demands for landscape goods and services2007 / p. 327-340 : ill

The quality of public transport as a determinant of the number of car commutersKaru, Kristiina; Rõivas, Tiia; Antov, Dago; Oja, Tõnu; Mander, ÜloUrban transport XIII : Urban transport and the environment in the 21st century2007 / p. 13-24

Urban movement patterns related to shopping centres - the example of Lõunakeskus in Tartu, EstoniaKluge, A.; Rõivas, Tiia; Antov, Dago; Oja, Tõnu; Mander, ÜloThe sustainable city V : Urban regeneration and sustainability2008 / p. 475-484 : ill