{"release":"Rel-20","nodes":[{"number":"09.18","type":"TS","title":"General Packet Radio Service (GPRS); Serving GPRS Support Node (SGSN) - Visitors Location Register (VLR); Gs interface layer 3 specification","series":9,"status":"Under change control","initial_release":"Release 1997","primary_group":"C1","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=375"}],"edges":[]}