%% You should probably cite draft-jadhav-roll-efficient-npdao instead of this I-D.
@techreport{jadhav-roll-no-path-dao-ps-01,
    number =    {draft-jadhav-roll-no-path-dao-ps-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-jadhav-roll-no-path-dao-ps/01/},
    author =    {Rahul Jadhav and Rabi Narayan Sahoo and Zhen Cao and DENG Hui},
    title =     {{No-Path DAO Problem Statement}},
    pagetotal = 10,
    year =      2016,
    month =     jun,
    day =       27,
    abstract =  {This document describes the problems associated with the use of No- Path DAO messaging in RPL.},
}