%% You should probably cite draft-ietf-roll-mopex-cap instead of this I-D.
@techreport{rahul-roll-mop-ext-01,
    number =    {draft-rahul-roll-mop-ext-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-rahul-roll-mop-ext/01/},
    author =    {Rahul Jadhav and Pascal Thubert},
    title =     {{RPL Mode of Operation extension}},
    pagetotal = 9,
    year =      2019,
    month =     jun,
    day =       9,
    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.},
}