Answer by Oliver Leenders for Package natbib Warning: There were undefined...
The error message says it already -- you cannot use non-ascii characters like öäüñ etc. in citations. These characters are not in the ascii table and only found in other more extensive tables like...
View ArticlePackage natbib Warning: There were undefined citations.[entries with...
I checked various related answers but, I am new to Natbib and couldn't figure out the problem if you might please be able to help. Here is the tex code:\documentclass{article} % for 2-column layout use...
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