diff --git a/nontech/audiobooks/efremov.txt b/nontech/audiobooks/efremov.txt
new file mode 100644
index 000000000..255174b38
--- /dev/null
+++ b/nontech/audiobooks/efremov.txt
@@ -0,0 +1 @@
+https://www.youtube.com/playlist?list=PL2Mdfps-kd24ZjPI4dxspm1c3XAnDS1aJ
diff --git a/science/ai/docs/people/uskova.txt b/science/ai/docs/people/uskova.txt
index 45d5f16d6..d7ad34e5a 100644
--- a/science/ai/docs/people/uskova.txt
+++ b/science/ai/docs/people/uskova.txt
@@ -1,4 +1,6 @@
 2023
+Metametrics - Uskova of 1:49:05
+    https://www.youtube.com/watch?v=z9Pd88svApg
 CognitivePilot - Uskova - VDNH of 40:13
     https://www.youtube.com/watch?v=97Qc0zuDFlE
 Menshova - Uskova of 1:29:50