<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><div>Hello all,<br>Generally, to do citation I use \cite{r1,r2,r3} which gives for example: [1,2,3,4].<br>What can I do with the \cite command such that I get [1-4].<br>Regards<br>Sarah<br></div></div><br>
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