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Polish Cartographical Review > 2016 > Vol. 48, No. 2 > 67--75
Polish Cartographical Review > 2015 > Vol. 47, No. 2 > 109--116
Geoinformatica Polonica > 2012 > T. 11 > 17-26
Polish Cartographical Review > 2016 > Vol. 48, No. 2 > 67--75
Polish Cartographical Review > 2015 > Vol. 47, No. 2 > 109--116
Geoinformatica Polonica > 2012 > T. 11 > 17-26