• Modernization of the e-government in EstoniaKalja, Ahto; Põld, Janari; Robal, Tarmo; Vallner, UunoProceedings of PICMET '11 : Technology Management in the Energy Smart World (PICMET) : July 31 - August 4, 2011, Portland, Oregon USA2011 / p. 3151-3157 : ill