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Hi,
I am using PhDtemplateLATEX to write my thesis and I have a question from bibtex. How to have the citation being sorted? For example, instead of having (1, 2, 3, 7, 8, 9), I want to have (1-3, 7-9). I try to use \usepackage[sort&compress]{natbib} ,
but since the document class is \documentclass ...