{"release":"Rel-99","nodes":[{"number":"13.67","type":"TS","title":"Attachment requirements for Global System for Mobile communications (GSM); Railways Band (R-GSM); Mobile Stations; Access","series":13,"status":"Under change control","initial_release":"Phase 2+","primary_group":null,"portal_url":"https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=539"}],"edges":[]}