%% You should probably cite draft-ietf-roll-mopex or draft-ietf-roll-capabilities instead of this I-D.
@techreport{ietf-roll-mopex-cap-01,
    number =    {draft-ietf-roll-mopex-cap-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-ietf-roll-mopex-cap/01/},
    author =    {Rahul Jadhav and Pascal Thubert and Michael Richardson},
    title =     {{Mode of Operation extension and Capabilities}},
    pagetotal = 10,
    year =      2019,
    month =     nov,
    day =       2,
    abstract =  {RPL allows different mode of operations which allows nodes to have a consensus on the basic primitives that must be supported to join the network. The MOP field in RFC6550 is of 3 bits and is fast depleting. This document extends the MOP field specification and adds a notion of capabilities using which the nodes can further advertise their support for, possibly optional, capabilities.},
}