Option citereset=chapter defines biblatex behavior for the reference footnote text in a typical situation when a citation appears several times in the document: footnote text for the particular citation is printed only once per document chapter ( citereset=chapter ), where chapter is defined according to the LaTeX sectioning commands . In my thesis a typical chapter includes about 20 pages, and I assumed citereset=chapter to be quite acceptable. However, one of my colleagues was confused by such a rule for printing the footnote text (., he did not get the logic behind the rule until I have explained it). I was thinking about resetting footnote text as "once-per-page" (not "once-per-chapter") but decided to avoid this due to high density of the references in my thesis. If you are interested in such a behavior some useful information can be found here .