Acta Physica Polonica A
Acta Physica Polonica A > 1992 > 82 > 4 > 649-652
Acta Physica Polonica A > 1992 > 82 > 4 > 653-655
Acta Physica Polonica A > 1992 > 82 > 5 > 737-740
Acta Physica Polonica A > 1992 > 82 > 4 > 649-652
Acta Physica Polonica A > 1992 > 82 > 4 > 653-655
Acta Physica Polonica A > 1992 > 82 > 5 > 737-740