Index: references
===================================================================
--- references	(revision 37262)
+++ references	(revision 37263)
@@ -1,4 +1,8 @@
+https://diyodemag.com/features/arduino_nano_uno_air_quality_monitor_datalogger
+	air montior v1
+
 https://diyodemag.com/projects/air_quality_monitor_v2_an_arduino_nano-based_air_quality_monitor_datalogger_and_clock
+	air montior v2
 
 https://rsgb.org/main/blog/publications/radcom/2023/01/19/radcom-february-2023-vol-99-no-2/
 	text references and screenshot