Szwed G., Tys J., Tarkowski C.:
Estimation of physical results of percussive loads in wheat and wheat-rye seed. (1997 r.)
6-th International Conference on Agrophysics, Lublin 15-18.09.1997 r
1997,
Szustak A., Tarkowski C., Lipiec J.:
Early growth and water uptake by some varieties of wheat as affected by soil compaction. (1997 r.)
6-th International Conference on Agrophysics, Lublin 15-18.09.1997 r
1997,