locus from line 10 of folio 1r to line 5 of folio 3v

Dear all,

what is the best way to define the location of a text which starts at a
certain line of a folio and ends at a certain line of another like from
line 10 of folio 1r to line 5 of folio 3v

<locus from="1r" n="10"/> <locus to="3v" n="5"/> for example?

thanks a lot!
Pietro

-- 
Pietro Maria Liuzzo
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