%% You should probably cite draft-cheng-msr6-design-consideration instead of this I-D.
@techreport{cheng-spring-ipv6-msr-design-consideration-01,
    number =    {draft-cheng-spring-ipv6-msr-design-consideration-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-cheng-spring-ipv6-msr-design-consideration/01/},
    author =    {Weiqiang Cheng and Gyan Mishra and Zhenbin Li and Aijun Wang and Zhuangzhuang Qin and Chi Fan},
    title =     {{Design Consideration of IPv6 Multicast Source Routing (MSR6)}},
    pagetotal = 15,
    year =      2021,
    month =     oct,
    day =       25,
    abstract =  {This document discusses the design consideration of IPv6 source routing multicast solution.},
}