1LEVIN SL.Universal service and targeted support in a competitive telecommunications environment[J].Telecommunications Policy,2010,34:92-97.
2MUELLER M.Universal Service in Telephone History:A Reconstruction[J].Telecommunications Policy,1993,17:352-369.
3HUDSON H E.Universal Service in the Information Age[J].Telecommunications Policy,1994,18(8):658-667.
4STEPHEN GRAHAM,JAMES CORNFORD and SIMON MARVIN.The Socio-Economic Benefits of A Universal Telephone Network:A Demand-Side View of Universal Service[J].Telecommunications Policy,1996,20 (1):3-10.
5MILNE C.Stages of Universal Service Policy[J].Telecommunications Policy,1998,22(9):775-780.
6GERMà BEL and JOAN CALZADA.Privatization and Universal Service Obligations[J].Journal of Institutional and Theoretical Economics,2009,(4):650-669.
