[1]
M. K. Widomski, P. Gleń, G. Łagód, and K. M. Jaromin-Gleń, “Sustainable Development of One of the Poorest Province of the European Union: Lublin Voivodeship, Poland – Attempt of Assessment”, PROBL EKOROZW, vol. 10, no. 2, pp. 137–149, Jul. 2015.