(((meta (@ (content . "Zettelmarkup: Citation Key") (name . "title"))) (meta (@ (content . "manual") (name . "role"))) (meta (@ (content . "#manual #zettelmarkup #zettelstore") (name . "tags"))) (meta (@ (content . "zmk") (name . "syntax"))) (meta (@ (content . "00001007010000 00001007040300 00001007721200") (name . "back"))) (meta (@ (content . "00001007010000 00001007040300 00001007721200") (name . "backward"))) (meta (@ (content . "1") (name . "box-number"))) (meta (@ (content . "(c) 2020-present by Detlef Stern ") (name . "copyright"))) (meta (@ (content . "20210810155955") (name . "created"))) (meta (@ (content . "00001007040000") (name . "forward"))) (meta (@ (content . "en") (name . "lang"))) (meta (@ (content . "EUPL-1.2-or-later") (name . "license"))) (meta (@ (content . "20220218133447") (name . "modified"))) (meta (@ (content . "20220218133447") (name . "published"))) (meta (@ (content . "public") (name . "visibility")))) (p "A citation key references some external material that is part of a bibliographical collection.") (p "Currently, Zettelstore implements this only partially, it is " (@L (@H "“") "work in progress" (@H "”")) ".") (p "However, the syntax is: beginning with a left square bracket and followed by an at sign character (" (@L (@H "“") (kbd "@") (@H "”")) ", U+0040), a the citation key is given." " " "The key is typically a sequence of letters and digits." " " "If a comma character (" (@L (@H "“") (kbd ",") (@H "”")) ", U+002C) or a vertical bar character is given, the following is interpreted as " (a (@ (href . "00001007040000")) "inline elements") "." " " "A right square bracket ends the text and the citation key element."))