Markowicz, Iwona.
A ranking of combined nomenclature chapters according to quality of data on intra-Community trade in goods of Polish businesses / Iwona Markowicz, Paweł Baran.
2019. -
Publikacja w wersji elektronicznej w Open Access na licencji Creative Commons-Attribution license CC-BY.
statistical data quality
international trade
INTRASTAT
analysis of mirror data