Tests confirm PTC viability
Railway gazette international ; 154 , 7 ; 467
1998
Aufsatz (Zeitschrift)
Englisch
British Library Online Contents | 1998
Flight tests confirm X-29 technologies
NTRS | 1989
|Analyses and tests confirm design of proprotor aircraft
AIAA | 1972
|Analyses and tests confirm design of proprotor aircraft.
NTRS | 1972
|