diff --git a/README.md b/README.md
index 190cc41..e1b9970 100644
--- a/README.md
+++ b/README.md
@@ -6,4 +6,7 @@
 - https://www.reichelt.de/magazin/projekte/smarte-tuerklingel/
 - https://github.com/opend-connect/openD
 - https://github.com/mbs38/siedle-in-home-bus-avr
-- https://www.panbachi.de/smarte-tuerklingel-alte-sprechanlage-smart-machen/
\ No newline at end of file
+- https://www.panbachi.de/smarte-tuerklingel-alte-sprechanlage-smart-machen/
+- https://www.richis-lab.de/Siedle.htm
+- https://esphome.io/guides/getting_started_hassio.html
+- https://community.home-assistant.io/t/sss-siedle-hta-811-door-phone-notify-in-ring/405179
\ No newline at end of file