JAMALI, Abdul Rauf et al.
 Effect of Cryogenic Treatment on Mechanical Properties of AISI 4340 and AISI 4140 Steel.
<strong>Mehran University Research Journal of Engineering and Technology</strong>, [S.l.], v. 38, n. 3, p. 755-766, july 2019.
ISSN 2413-7219.
Available at: &lt;<a href="https://publications.muet.edu.pk/index.php/muetrj/article/view/1145" target="_new">https://publications.muet.edu.pk/index.php/muetrj/article/view/1145</a>&gt;. Date accessed: 19 apr. 2024.
doi: <a href="http://dx.doi.org/10.22581/muet1982.1903.18">http://dx.doi.org/10.22581/muet1982.1903.18</a>.