For arranging my references in papers and in other documents I use in reference manager RefWorks. But sometimes, after inserting some additional reference, it suddenly duplicate indexes.
For example, before inserting additional reference [45-58]. after inserting it look something like that [54, 55, 55, 56, 56, 57, 57, 58, 58, 59, 59, 60, 60, 61, 61, 62, 62, 63, 63, 64, 64, 65, 65, 66, 66, 67, 67, 68, 68, 69]
Is there is a reason for this? How I can avoid or fix that?
Thank you in advance.