Writing a scientific document, I noticed that the page numbers (cross referencing) don't always show up in the References section created with bibtex. Actually, the page number is displayed only when the reference number appears explicitly somewhere in the document.
First example: if I have the following citation, "three very important studies [3, 5, 10]", on page 3 of my document then each of the three references will have the "page 3" cross reference in the References section.
Second example: if I have the following citation, "four equally important studies [12-15]", on page 4 of my document then only reference 12 and reference 15 will show the "page 4" cross reference in the References section. References 13 and 14 will have no page number label.
Can someone explain the behavior in the second example? Is there a workaround?