# Include periods in end title names in references

I have a LaTeX document using the custom bibliography to build bibliographies. I would like to know how I may include periods at end of titles. I created my custom bst using LaTeX makebst program.

Here is my working MWE. I want my references to print as follows:

Mada J, Idzumi M and Tokihiro T 2005 Path description of conserved quantities of generalized periodic box-ball systems. Journal of mathematical physics 46(2):022701

Notice there is addition of period between article title and Journal name.

• I seem to remember that this has to do with the block-separator, but changing that in the already created .bst file could be complicated. You may be lucky, but in general it is hard to find anybody who still understands the .bst-language. If you have the possibility, I would strongly recommend to switch to BibLaTeX, which offers much more functionality. – Manuel Weinkauf Feb 21 '17 at 15:09
• @ManuelWeinkauf the references presented here is it possible to compile them with BibLaTeX without the .bst Language? – Mafeni Alpha Feb 21 '17 at 18:11
• Certainly, and very easily so. Just have a look here and here for some quick guides how to switch to BibLaTeX. – Manuel Weinkauf Feb 21 '17 at 18:37
• @ManuelWeinkauf I tryed your way but thats not easy way. The easy way is to use custom bib. Your way will involve a lot of fixes. – Mafeni Alpha Feb 21 '17 at 20:12
• It certainly requires some learning, but is the much more flexible method. So if you want to stick to LaTeX in the future, it is well worth investing the time. And frankly speaking, there are hardly any "fixes" needed, because basically (i.e. with standard output) BibLaTeX is fully compatible with BibTeX documents. It only requires replacing \bibliography{Lit} with \printbibliography, adding addbibresource{Lit.bib} in the preamble, and deleting \bibliographystyle{}. Hardly any work at all. – Manuel Weinkauf Feb 22 '17 at 10:37

To get the references to be print as you wish you need to change one function in your used bibliography style file research.bst. Search for function format.title and change it to (I added add.period$" " * to add the period and a blank): FUNCTION {format.title} { title duplicate$ empty$'skip$
{ "t" change.case$add.period$ " " *
}
if\$
"title" bibinfo.check
}


With the following MWE

\RequirePackage{filecontents}
\begin{filecontents}{\jobname.bib}
Title     = {Path description of conserved quantities of generalized periodic box-ball systems},
Author    = {Mada, Jun and Idzumi, Makoto and Tokihiro, Tetsuji},
Year      = {2005},
Number    = {2},
Pages     = {022701},
Volume    = {46},
Journal   = {Journal of mathematical physics},
Publisher = {AIP Publishing},
}
Title   = {Error analysis for spectral approximation of the Korteweg-de Vries equation},
Author  = {Maday, Y and Quarteroni, A},
Year    = {1988},
Number  = {3},
Pages   = {499--529},
Volume  = {22},
Journal = {RAIRO-Mod{\'e}lisation math{\'e}matique et analyse num{\'e}rique},
}
\end{filecontents}

\documentclass{article}

\usepackage{natbib}

\begin{document}
I try to cite here \cite{mada2005path}.