- thevintageaviator.co.nz
- www.smlpoland.eu
- www.homebuiltairplanes.com
- www.theaerodrome.com
- www.greatwaraviation.com
- www.woodenpropeller.com
- lotniczapolska.pl
- www.aircraftspruce.com
- www.lasaero.com
- www.nowakservice.pl
- portal.prz.edu.pl
- www.deutsches-museum.de/flugwerft/information
- www.4-air.com
- www.samolotypolskie.pl
- www.eaa.org