Heinkel HeS 1 (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Heinkel HeS 1" in Italian language version.

refsWebsite

Global rank Italian rank

838^th place

542^nd place

google.ca

Pavelec, pag. 19. (EN) Sterling Michael Pavelec, The Jet Race and the Second World War, Praeger Security International, 2007, ISBN 978-0275993559.
Hirshel, pag. 236. (EN) Ernst Heinrich Hirschel, Horst Prem, Gero Madelung, Aeronautical Research in Germany: From Lilienthal until Today, Springer, 2003, ISBN 978-3540406457.