%% You should probably cite rfc8036 instead of this I-D.
@techreport{ietf-roll-applicability-ami-06,
    number =    {draft-ietf-roll-applicability-ami-06},
    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-applicability-ami/06/},
    author =    {Daniel Popa and Jorjeta Jetcheva and Nicolas Dejean and Ruben Salazar and Jonathan Hui and Kazuya Monden},
    title =     {{Applicability Statement for the Routing Protocol for Low Power and Lossy Networks (RPL) in AMI Networks}},
    pagetotal = 18,
    year =      2012,
    month =     apr,
    day =       30,
    abstract =  {This document discusses the applicability of RPL in Advanced Metering Infrastructure (AMI) networks.},
}