diff --git a/nontech/politics/clubs/kob/kob-petrov.txt b/nontech/politics/clubs/kob/kob-petrov.txt
index db6552abb..303d041bd 100644
--- a/nontech/politics/clubs/kob/kob-petrov.txt
+++ b/nontech/politics/clubs/kob/kob-petrov.txt
@@ -108,10 +108,14 @@ VideoBelarus - KOB - Petrov Konstantin Pavlovich of p20
     https://www.youtube.com/playlist?list=PLD8530204BC9F3270
     p4 15:00 of 1:17:08
         https://www.youtube.com/watch?v=L3u4PtpHfT4
-    p3 of 1:48:33
+    p3 37:00 of 1:48:33
         https://www.youtube.com/watch?v=3WnOGwQtkLY
         ! 3-edinstvo: materiya/veschestvo, information, vremya (Amun - 4)
-        ! Shmakov - 10 arcan of Sefirot (sozdal mir 3-mya nachalami: sefar, sipur, sefer)
+        ! 30:00 Vodovozov - kniga pervonachalnogo chteniya (https://rusneb.ru/catalog/000200_000018_v19_rc_1435445/)
+        ! 31:00 Shmakov - 10 arcan of Sefirot (sozdal mir 3-mya nachalami: sefar, sipur, sefer)
+        !   https://flibusta.is/a/72413
+        !   https://www.youtube.com/watch?v=ajNyrFADeXk
+        !   https://commons.wikimedia.org/wiki/File:Шмаков_В.А._-_Священная_книга_Тота_(1916).pdf
         ! sefar - dolzhen opredelyat chisla dlya togo chtoby ponyat cel, dlya kotoroy ona sozdana
         ! sipur - slovo, golos, information, mera
         ! sefer ???