R. T. Yntema

Some Aeroelastic Problems of Tilt‐Wing; VTOL Aircraft

R. G. Loewy, R. T. Yntema, 1958 .

Simplified Procedures and Charts for the Rapid Estimation of Bending Frequencies of Rotating Beams

R. T. Yntema, Robert T Yntema, 1954 .