TY - GEN PB - Bunhill Publ. Ltd. L1 - http://cybra.lodz.pl/Content/21118/Air_Eng_vol_XXI_no_245_July_1949.pdf L2 - http://cybra.lodz.pl/Content/21118 T1 - Aircraft Engineering Vol. XXI Nr 245 (1949) UR - http://cybra.lodz.pl/dlibra/docmetadata?id=21118 ER -