7. Grackova, L., Oleinikova, I. (28-30 May, 2014). Economic motivation for electric vehicles participation in power market. In: The 11th International Conference on the European Energy Market, (EEM 2014). Krakow (Poland). Category numberCFP1452DUSB; Code 106830. Article number: 6861224.10.1109/EEM.2014.6861224Search in Google Scholar
8. www.latvenergo.lv/portal/page/portal/Latvian/Sad_tikls/Tipveida+grafiki_jauns.htm Search in Google Scholar