@article{{CP}{}, author = {Czyżycki, R.}, title = { Non-model methods in the study of regional development – the impact of the aggregation formula on the obtained research results}, journal = {<center>Conference Proceedings <BR> Determinants Of Regional Development</center>}, number = {1}, year = {2019}, doi = {10.14595/CP/01/014}, url = {http://pes.pwsz.pila.pl/index.php/proceedings/article/view/165} }