{"release":"Rel-4","nodes":[{"number":"29.018","type":"TS","title":"General Packet Radio Service (GPRS); Serving GPRS Support Node (SGSN) - Visitors Location Register (VLR); Gs interface layer 3 specification","series":29,"status":"Under change control","initial_release":"Rel-4","primary_group":"C1","portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1594"}],"edges":[]}