D. P. Helander
发表
K. Kantar,
D. P. Helander,
1967
.
D. P. Helander,
B. Gurses,
1967
.
D. P. Helander,
John I. Myung,
1972
.
Sequential Measurement of Compressional and Shear Velocities of Rock Samples Under Triaxial Pressure
D. P. Helander,
K. P. Desai,
1969
.
D. P. Helander,
1965
.