Referencing my ZK in book annotations
With what remains of my winter break I am doing some self-study and review. I'm reading a short textbook that was optional for a course last term, in the hopes of learning material better by (1) seeing it presented differently and (2) not having the pressure of deadlines. Most important, many of the topics covered already have notes in my ZK.
When I started, this process meant that I would add to pre-existing Zettels with clarifications or elaborations and cite the book in question. A deeply-engrained habit of mine is also to annotate in the margins of a book as a part of building those connections.
Today, a concept mentioned tied into a Zettel from another class. I opted for
cf. [[UID]] notation.
Nevertheless, is there a best practice for referencing a Zettel from outside the system, especially on paper?
What workflow do you have that supports pointing you into your ZK from other sources?