Ragin-Skorecka, K. and Wyrwicka, M.K. 2016. Comparative analysis Delphi research related to Wielkopolska`s innovation. Acta Universitatis Lodziensis. Folia Oeconomica. 3, 321 (Oct. 2016), [5]-20. DOI:https://doi.org/10.18778/0208-6018.321.01.