<ul><li><a href=https://www.rrt.lt/istekliai/rinku-tyrimai/ target=_blank>Market survey of electronic communication services(List of regulated markets)</a></li><li><a href=https://www.e-tar.lt/portal/lt/legalActEditions/TAR.82D8168D3049?faces-redirect=true target=_blank>Law on Eletronic Communications(Elektroninių ryšių įstatymas, adopted on 15 April 2004, consolidated version of 17 January 2020, article 21)</a></li></ul>