Acta Physica Polonica A
Acta Physica Polonica A > 2011 > 120 > 4 > 744-747
Acta Physica Polonica A > 2011 > 120 > 4 > 709-712
Acta Physica Polonica A > 2011 > 120 > 4 > 609-615
Acta Physica Polonica A > 2011 > 120 > 4 > 759-762
Acta Physica Polonica A > 2011 > 120 > 4 > 767-771