%% You should probably cite rfc8767 instead of this I-D. @techreport{ietf-dnsop-serve-stale-00, number = {draft-ietf-dnsop-serve-stale-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-dnsop-serve-stale/00/}, author = {David C Lawrence and Warren "Ace" Kumari}, title = {{Serving Stale Data to Improve DNS Resiliency}}, pagetotal = 10, year = 2017, month = oct, day = 30, abstract = {This draft defines a method for recursive resolvers to use stale DNS data to avoid outages when authoritative nameservers cannot be reached to refresh expired data.}, }