diff --git a/visualization/README.md b/visualization/README.md
index 5d4eae9e..43da77d3 100644
--- a/visualization/README.md
+++ b/visualization/README.md
@@ -7,4 +7,5 @@
 см. также:
 - Графические редакторы схем https://github.com/bpmbpm/doc/blob/main/BPM/graphic_editor
 - https://github.com/bpmbpm/doc/tree/main/BPM/graphic_editor/mermaid_etc
+- https://github.com/bpmbpm/doc/blob/main/BPM/notation/DaC.md