((p "An important aspect of knowledge work is to interconnect your zettel as well as provide links to (external) material.") (p "There are several kinds of references that are allowed in Zettelmarkup:") (ul (li (a (@ (href . "00001007040310")) "Links to other zettel or to (external) material")) (li (a (@ (href . "00001007040320")) "Embedded zettel or (external) material") " (" (@L (@H "“") "inline transclusion" (@H "”")) ")") (li (a (@ (href . "00001007040330")) "Reference via a footnote")) (li (a (@ (href . "00001007040340")) "Reference via a citation key")) (li "Put a " (a (@ (href . "00001007040350")) "mark") " within your zettel that you can reference later with a link.")))