Widomski, M. K., Gleń, P., Łagód, G., & Jaromin-Gleń, K. M. (2015). Sustainable Development of One of the Poorest Province of the European Union: Lublin Voivodeship, Poland – Attempt of Assessment. Problemy Ekorozwoju, 10(2), 137–149. Retrieved from https://ph.pollub.pl/index.php/preko/article/view/4917