Proceedings of ECOpole
Proceedings of ECOpole > 2010 > Vol. 4, No. 2 > 535--539
Proceedings of ECOpole > 2010 > Vol. 4, No. 2 > 409--411
Proceedings of ECOpole > 2010 > Vol. 4, No. 2 > 515--522
Proceedings of ECOpole > 2010 > Vol. 4, No. 2 > 465--469
Proceedings of ECOpole > 2010 > Vol. 4, No. 2 > 351--356
Proceedings of ECOpole > 2010 > Vol. 4, No. 2 > 249--252
Proceedings of ECOpole > 2010 > Vol. 4, No. 2 > 523--527