%% You should probably cite rfc4919 instead of this I-D.
@techreport{ietf-6lowpan-problem-08,
    number =    {draft-ietf-6lowpan-problem-08},
    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-6lowpan-problem/08/},
    author =    {Gabriel Montenegro and Christian Schumacher and Nandakishore Kushalnagar},
    title =     {{IPv6 over Low-Power Wireless Personal Area Networks (6LoWPANs): Overview, Assumptions, Problem Statement, and Goals}},
    pagetotal = 12,
    year =      2007,
    month =     mar,
    day =       2,
    abstract =  {This document describes the assumptions, problem statement, and goals for transmitting IP over IEEE 802.15.4 networks. The set of goals enumerated in this document form an initial set only. This memo provides information for the Internet community.},
}