Analysis of electricity cost as a driver of competitiveness in Nothern Europe : the case of Estonia [Electronic resource]Viiding, Marko; Kallemets, Kalev; Pikk, PeeterDoctoral Summer School 2011 : doctoral school in economics and innovation : 25-28 July 2011, Viinistu, Estonia2011 / [CD-ROM]

The dangers of marginal cost based electricity pricing [Electronic resource]Pikk, Peeter-Jass; Viiding, Marko4th International Conference "Economic Challenges in Enlarged Europe" : 17-19 June 2012, Tallinn, Estonia : conference proceedings2012 / 14 p. : ill. [CD-ROM] https://www.tandfonline.com/doi/abs/10.1080/1406099X.2013.10840525

The dangers of marginal cost based electricity pricing [Electronic resource]Pikk, Peeter-Jass; Viiding, MarkoDoctoral Summer School 2012 : doctoral school in economics and innovation : 24-27 July 2012, Nelijärve, Estonia2012 / 12 p. : ill [CD-ROM]