diff --git a/2021-07-13.md b/2021-07-13.md
index ef6246580..fcff1c1f8 100644
--- a/2021-07-13.md
+++ b/2021-07-13.md
@@ -1,4 +1,5 @@
 - [[cheap calculator]]
 - [[edsger dijkstra]]
+- [[vitaly kaloyev]]
 - [[stpa]]
 	- [[stpa workshop]]
\ No newline at end of file