%% You should probably cite draft-ietf-ccamp-layer0-types-ext instead of this I-D.
@techreport{esdih-ccamp-layer0-types-ext-00,
    number =    {draft-esdih-ccamp-layer0-types-ext-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-esdih-ccamp-layer0-types-ext/00/},
    author =    {Dieter Beller and Sergio Belotti and Haomian Zheng and Italo Busi and Esther Le Rouzic},
    title =     {{A YANG Data Model for Layer 0 Types - Revision 2}},
    pagetotal = 25,
    year =      ** No value found for 'doc.pub_date.year' **,
    month =     ** No value found for 'doc.pub_date' **,
    day =       ** No value found for 'doc.pub_date.day' **,
    abstract =  {This document defines a collection of common data types and groupings in the YANG data modeling language, which are used in several YANG modules for wavelength Division multiplexing (WDM) transport networks. The YANG module ietf-layer0-types-ext updates ietf- layer0-types defined in draft-ietf-ccamp-layer0-types, which has been reduced in scope prior to publication to only cover spectrum management related aspects required for the YANG module ietf-wson- topology defined in draft-ietf-ccamp-wson-yang. To be completed},
}