I applied the stylesheet JournalArticle to a notebook. When I use the Reference cell style there, it automatically inserts "A.", "B.", etc., to number the cells.
What exactly should one do (presumably using Format > Edit Stylesheet) so as to change that auto-numbering to "1.", "2.", etc.?
I did look at the Private Style Definitions notebook that opens if I use Format > Edit Stylesheet for my notebook. The expression that's the contents of the Reference style cell definition is merely:
Moreover, if I select the Reference cell in the stylesheet, open Option Inspector, search for AutomaticNumbering, and change the option
Formatting Options > Automatic Numbering Options > Counter Display Options > CounterFunction
to Decimal Numbers (in the drop down menu aside this option), it does not change the stylesheet's prototype for this Reference style -- and hence will not change the style of Reference cells in my actual notebook.