PLUTA, Zbyslaw.
 Evacuated tubular or classical flat plate solar collectors?.
<strong>Journal of Power Technologies</strong>, [S.l.], v. 91, n. 3, p. 158--164, sep. 2011.
ISSN 2083-4195.
Available at: &lt;<a href="https://papers.itc.pw.edu.pl/index.php/JPT/article/view/247" target="_new">https://papers.itc.pw.edu.pl/index.php/JPT/article/view/247</a>&gt;. Date accessed: 28 apr. 2024.