[Solved] citeauthor without natbib

Erik Asks: citeauthor without natbib
I need to use a style file that does not allow use of natbib, but I still want to use something similar to the citeauthor or citet command from natbib. This similar to this question, but that answer references use of natbib. I’ve also tried using biblatex, but the results were not close enough to the abbrv style that I need to use for BibTeX. Does anyone know a way around this?

Edit: the bibliography style isn’t the issue. The stylefile doesn’t allow using natbib.

Edit: Another restriction is I have to eventually make a self contained file. The recommendation is copy the .bbl in to where the bibliography section was, but I was unable to get a procedure like that to work with biblatex.

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