L. E. Stephens

Soil strength in the seed zone of several planting systems

L. E. Stephens, R. R. Johnson, 1993 .

Grain Bulk Properties as Affected by Mechanical Grain Spreaders

G. H. Foster, L. E. Stephens, L. E. Stephens, 1976 .

Bulk Properties of Wheat and Grain Sorghum as Affected by a Mechanical Grain Spreader

L. E. Stephens, G. Foster, 1978 .