TY - BOOK AU - Bertelrud, A. TI - A literature survey of surface roughness effects on the drag of subsonic aircraft PY - 1978/// CY - Stockholm : PB - National Technical Information Service, KW - RESISTENCIA AERODINAMICA KW - RUGOSIDAD SUPERFICIAL KW - RESISTENCIA POR FRICCION KW - FLUJO SUBSONICO KW - AERODINAMICA DE AERONAVES ER -