What does the abbreviation "p.c." next to a name stand for in academic papers? Here are a couple of examples:
https://www.leibniz-zas.de/fileadmin/Archiv2019/mitarbeiter/frey/frey_2004-VF.pdf#page=37
The following problem was raised by H. Haider (p.c.).
https://www.diva-portal.org/smash/get/diva2:312940/FULLTEXT02.pdf#page=82
Also, as pointed out to me by Staffan Hellberg (p.c) verbs can be deaccented [...]