TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk > 2007 > Vol. 11, No 4 > 329-340
TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk > 2011 > Vol. 15, No 3-4 > 251-270
TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk > 2013 > Vol.17, No 1-2 > 63--90