Information system of Estonian libraries : present state, problems and solutionsJärs, JüriThe Integration of European Technological Libraries : proceedings of the conference, Tallinn, Estonia, September 6-7, 19941995 / p. 97-106 https://www.ester.ee/record=b1053766*est

Information system of Estonian libraries : present state, problems and solutionsJärs, JüriThe Integration of European Technological Libraries : conference, September, 5-8, 1994, at the TTU Library : abstracts1994 / p. 7-8 https://www.ester.ee/record=b1912693*est