BARTOSZEWICZ, Jaroslaw. Characteristics of fans used in low-power boilers. Journal of Power Technologies, [S.l.], v. 97, n. 1, p. 69--74, feb. 2017. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/884>. Date accessed: 24 sep. 2021.