Law BibItems: Use of Ibid. in notes and reference lists
If an Ibid.
reference is to a case or an instrument, it must also have either a sameTarget or
sameTargetRoot attribute to indicate which bibItem it refers to.
If the “Ibid.” refers to the same document or part, use sameTarget. If the
Ibid.
is followed by text that refers to a different part of the document, use
sameTargetRoot. The target id within
sameTarget or sameTargetRoot must be the same as the
target of the xref element.