Albert A-60 (3D, Letectví 1931)
neznámý (unknown)
1931-05-15
Letectví, Vol. XI. (1931), No. 5 (May), p. 188, <a rel="nofollow" class="external free" href="https://kramerius.army.cz/search/i.jsp?pid=uuid:ce88682c-5209-11e9-bd6d-005056b73ae5">https://kramerius.army.cz/search/i.jsp?pid=uuid:ce88682c-5209-11e9-bd6d-005056b73ae5</a>