R. Berntsen

Tine forces established by a two-level model and the draught requirement of rigid and flexible tines

T. Torp, B. Berre, R. Berntsen, 2006 .

Fracturing of soil clods and the soil crumbling effectiveness of draught tillage implements

R. Berntsen, B. Berre, 1993 .

The Oxidation of Glucose and Related Compounds with Oxides of Nitrogen1

R. Berntsen, E. Degering, 1951 .

Soil fragmentation and the efficiency of tillage implements

R. Berntsen, B. Berre, 2002 .

The Reaction of Ozone with SBR Rubbers

E. L. Hill, R. Berntsen, P. Kusy, 1959 .