I am writing one of my article and when I am following citation I ended up with following issues. I want to follow the order of appearance in my citation. But when I am using one reference for the first time in the article in Chapter 1, it appears as follows,
When I am using the same reference again in Chapter 3, it appears as follows.
documentclass[12pt]{elsarticle}
usepackage[sorting=none]{natbib}
Do you have any idea how to get rid from this?
Thank you.
\bibitem
by hand using a different key for each\cite