Rogožarski SIM-VIa a motor Walter Mikron 4-II
neznámý (unknown)
Letectví, Vol. XVIII. (1938), No. 8 (August), p. 320, <a rel="nofollow" class="external free" href="https://kramerius.army.cz/search/i.jsp?pid=uuid:8d89461d-5f10-11e9-9ee1-005056b73ae5">https://kramerius.army.cz/search/i.jsp?pid=uuid:8d89461d-5f10-11e9-9ee1-005056b73ae5</a>