https://datatracker.ietf.org/doc/draft-ietf-ngtrans-6bone-ptla/00/
draft-ietf-ngtrans-6bone-ptla-00 - 6BONE pTLA and pNLA Formats (pTLA)
This memo defines how the 6bone uses the 3FFE::/16 IPv6 address prefix, allocated in RFC 2471, "IPv6 Testing Address Allocation", to create pseudo Top-Level...
draftietfpnlaformats
https://www.fool.com/earnings/call-transcripts/2019/03/01/portola-pharmaceuticals-inc-ptla-q4-2018-earnings.aspx
Portola Pharmaceuticals Inc (PTLA) Q4 2018 Earnings Conference Call Transcript | The Motley Fool
Apr 15, 2019 - PTLA earnings call for the period ending December 31, 2018.
https://sdrc.lib.uiowa.edu/lucile/ptla/history.htm
The LUCILE Project - PTLA Publishers' Trade List Annual Indexes
trade listlucileprojectpublishersannual