Laskowski, R.
(2011).
 The concept of a new approximate relation for heat transfer effectiveness for a cross-flow heat exchanger with unmixed fluids.
<em>Journal Of Power Technologies, 91</em>(2), 93-101.
Retrieved from <a href="https://papers.itc.pw.edu.pl/index.php/JPT/article/view/238" target="_new">https://papers.itc.pw.edu.pl/index.php/JPT/article/view/238</a>