%% You should probably cite rfc9347 instead of this I-D.
@techreport{ietf-ipsecme-iptfs-07,
    number =    {draft-ietf-ipsecme-iptfs-07},
    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-ipsecme-iptfs/07/},
    author =    {Christian Hopps},
    title =     {{IP-TFS: IP Traffic Flow Security Using Aggregation and Fragmentation}},
    pagetotal = 30,
    year =      2021,
    month =     feb,
    day =       22,
    abstract =  {This document describes a mechanism to enhance IPsec traffic flow security (IP-TFS) by adding Traffic Flow Confidentiality (TFC) to encrypted IP encapsulated traffic. TFC is provided by obscuring the size and frequency of IP traffic using a fixed-sized, constant-send- rate IPsec tunnel. The solution allows for congestion control as well as non-constant send-rate usage. The mechanisms defined in this document are generic with the intent of allowing for non-TFS uses, but such uses are outside the scope of this document.},
}