[3] Clarifying the state of and the transition plan for tools.ietf.org, , https://mailarchive.ietf.org/arch/msg/ietf/0n-6EXEmkTp3Uv_vj-5Vnm3o0bo/
[1] Reminder: tools.ietf.org is shutting down before IETF 113, , https://mailarchive.ietf.org/arch/msg/ietf-announce/xKzJZIyanPCclTd7DU9PxBAbwhA/
[4] GitHub - ietf-tools/tools-transition-plan, https://github.com/ietf-tools/tools-transition-plan