<div dir="ltr"><div class="gmail_default" style="font-size:large">Dear QE Users,<br></div><div class="gmail_default" style="font-size:large">I am looking for an original Ref. for BFGS ion dynamics to cite in my manuscript.</div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large">I am mentioning here a few but not sure to use them or not.</div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large">1. Refs. [6-9] from this paper:  <a href="https://aip.scitation.org/doi/10.1063/1.4905665">https://aip.scitation.org/doi/10.1063/1.4905665</a></div><div class="gmail_default" style="font-size:large">2. <a href="https://www.wiley.com/en-sg/Practical+Methods+of+Optimization%2C+2nd+Edition-p-9780471494638">https://www.wiley.com/en-sg/Practical+Methods+of+Optimization%2C+2nd+Edition-p-9780471494638</a></div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large">Regards</div><div class="gmail_default" style="font-size:large">K C Bhamu</div><div class="gmail_default" style="font-size:large">University of Ulsan</div><div class="gmail_default" style="font-size:large">ROK</div></div>