Aero A-38
Letectví (unknown. neznámý)
1929-11-15
Letectví, Vol. 9. (1929), 11. (November), p. 382-386, <a rel="nofollow" class="external free" href="https://kramerius.army.cz/search/i.jsp?pid=uuid:88e1b093-51ea-11e9-a1c8-005056b73ae5">https://kramerius.army.cz/search/i.jsp?pid=uuid:88e1b093-51ea-11e9-a1c8-005056b73ae5</a>