%% You should probably cite rfc9009 instead of this I-D. @techreport{ietf-roll-efficient-npdao-09, number = {draft-ietf-roll-efficient-npdao-09}, 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-roll-efficient-npdao/09/}, author = {Rahul Jadhav and Pascal Thubert and Rabi Narayan Sahoo and Zhen Cao}, title = {{Efficient Route Invalidation}}, pagetotal = 16, year = 2018, month = oct, day = 14, abstract = {This document describes the problems associated with NPDAO messaging used in RPL for route invalidation and signaling changes to improve route invalidation efficiency.}, }