Bernaciak, Arnold, and Anna Bernaciak. “The Implementation of the United Nations Sustainable Development Goals by Processes of Participatory Budgeting: Development of the Transport System and Road Safety (the Case of the City of Poznań, Poland)”. Economics and Environment, vol. 71, no. 4, Dec. 2019, p. 11, https://ekonomiaisrodowisko.pl/journal/article/view/59.