1. Memorandum of understanding on the regional electricity market in South East Europe and its integration into the European union internal electricity market, signed in Athens, 08.12.2003. (“The Athens Memorandum – 2002”). www.seerecon.org/infrastructure/documents/,ou-rem-see.pdf.
2. Energy Community Treaty, www.energy-community.org.
3. Macura A, Mihajlov B, Grupković D, Tatić D, Vujčić E, Jakopin F, et al. Vid: human development report serbia 2008 – regional cooperation. Beograd, UNDP Srbija, 2008. 235str.; 2008. ISBN 978-86-7728-103-8.
4. EC environmental legislation. http://europa.eu.int/eur-lex/index.html.
5. Mihajlov A. Sustainable development and environment towards Europe in 95+ steps (2005 in Serbian, 2006 in English). Serbian Chamber of Commerce/Environmental Ambassadors; 2005 (2006).