Harald-Adam Velner : bibliograafia
2015
https://www.ester.ee/record=b4532894*est
Hoone kanalisatsioon [Võrguteavik] = Draining system inside buildings
2019
https://www.ester.ee/record=b5261771*est
Kalapääsud vooluvete komplekssel käsitamisel
2009
https://www.ester.ee/record=b2508504*est
Water supply and sewerage in Tallinn since medieval times
Hanni, Hille
European water management
1999
/
4, p. 62-68: ill
Veeteed Eestis
2013
https://www.ester.ee/record=b2964164*est