When a paper is submitted to a journal in 1966 and published in 1970 while the institutions of the editors publish their own versions in the meantime, it is a cowardly attack. They then use threats against the victim to keep quiet.
This is what happened to Nils Hakansson by MIT and Harvard. They have pursued intimidation tactics to this day. That includes Larry Summers remarks about women to the NBER in January 2015 which were intended to intimidate women profs to going along with this. Summers made a cowardly attack on women profs who could testify and expose him in US v Harvard, Shleifer and Hay.