Mirzyńska, A., Kosch, O., Schieg, M., Šuhajda, K. and Szarucki, M. 2021. Exploring concomitant concepts in the discussion on the circular economy: A bibliometric analysis of Web of Science, Scopus and Twitter. Technological and Economic Development of Economy. 27, 6 (Nov. 2021), 1539-1562. DOI:https://doi.org/10.3846/tede.2021.15801.