Springer's middot character

Recently, I was asked to confirm my paper in Springer (office in India). The typesetter has corrected the keywords separator from comma to so-called middle dot, see in UTF U+00B7. This symbol was inputted directly as utf symbol, you can simply copy it from here · into your tex-file.

One can check the UTF code of a symbol in the internet, e.g. here. The detailed discussion about dots in Latex is given on this web-page.

This example is found in a sample file that comes along with the author kit for some conference:

\keywords{First keyword \and Second keyword \and Another keyword}

This should result in a list of keywords separated by 'middots' as long as you use the llncs class file.