Nowak, Tomasz. “Case Study – Based Experience Concerning Technical and Economical Effectiveness Resulting from the Operation of Photovoltaic Installations”. Scientific Journal of Gdynia Maritime University 1, no. 120 (December 31, 2021): 7–21. Accessed May 2, 2024. https://ojs.umg.edu.pl/index.php/sjgmu/article/view/59.