title: Zettelmarkup: Citation Key role: manual tags: #manual #zettelmarkup #zettelstore syntax: zmk back: 00001007010000 00001007040300 00001007721200 backward: 00001007010000 00001007040300 00001007721200 box-number: 1 copyright: (c) 2020-present by Detlef Stern created: 00010101000000 forward: 00001007040000 lang: en license: EUPL-1.2-or-later modified: 20220218133447 published: 20220218133447 visibility: public A citation key references some external material that is part of a bibliographical collection. Currently, Zettelstore implements this only partially, it is work in progress. However, the syntax is: beginning with a left square bracket and followed by an at sign character (@, U+0040), a the citation key is given. The key is typically a sequence of letters and digits. If a comma character (,, U+002C) or a vertical bar character is given, the following is interpreted as [inline elements](00001007040000). A right square bracket ends the text and the citation key element.