3 ms·The image of the cover says 1977, I'd say the date is an error.by kristianp 3mo agoThe image of the cover says 1977, I'd say the date is an error.IanCal 3mo agoThat’s the date of the conference. The proceedings appear to have been published the year before.BirAdam 3mo agoIt is, indeed, an error. I will correct the record.