So, I am currently writing using the agsm bibliography style to generate Harvard-style (aka authoryear-style) citation call-outs. The problem is that I am writing in swedish and when I want to cite publications with two authors, then \citep{carlsson2007evidence} will generate the following "Carlsson and Rooth (2007)". However, I want to replace "and" with "och".
I found a similar question here Change citation conjunction from "and" to "i" where the solution is to modify the .bst file in order to change the conjunction but I dont know where I need to modify in the .bst file.
Can someone tell me where I need to modify the .bst file or if there is another solution to the problem?

agsmit should be enough to redefine the command\harvardandin your preamble:\renewcommand*{\harvardand}{i}(or\newcommand*{\harvardand}{i}depending on whether or not the command is already defined by a package you load). No need to modify the.bstfile. – moewe Apr 08 '19 at 09:30I get an error: \harvardand undefined. Why?
– Victor Galeano Apr 08 '19 at 09:47