%% You should probably cite draft-vanderstok-core-etch instead of this I-D.
@techreport{vanderstok-core-patch-00,
    number =    {draft-vanderstok-core-patch-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-vanderstok-core-patch/00/},
    author =    {Peter Van der Stok and Anuj Sehgal},
    title =     {{Patch Method for Constrained Application Protocol (CoAP)}},
    pagetotal = 8,
    year =      2015,
    month =     mar,
    day =       8,
    abstract =  {Several applications (for example see {[}I-D.vanderstok-core-comi{]}) which extend the Constrained Application Protocol {[}RFC7252{]} (CoAP) need to perform partial resource modifications. The existing CoAP PUT method only allows a complete replacement of a resource. This proposal adds a new CoAP method, PATCH, to modify an existing CoAP resource partially.},
}