My references to PhD thesis go out of the margins in the bibliography

Question

I am writing my PhD thesis. When I refer to a PhD thesis, the title of the thesis is underlined. When the title is too long, there is no break and the title is written out of the margin of the page. I show you the code I used, followed by an example.

LaTeX code

%!TEX TS-program = latexmk
%!TEX encoding = IsoLatin

\documentclass[PhD,english,francais]{ulthese}
\ifxetex\else  \usepackage[latin1]{inputenc}\fi

\usepackage{amsmath}       
\usepackage{icomma}
\usepackage{graphicx}
\usepackage{mathptmx} 
\usepackage{array,multirow,makecell}
\usepackage{colortbl} 
  \definecolor{grisfonce}{rgb}{192,192,192}
  \definecolor{grisclair}{rgb}{204,204,204}
\usepackage{soul} 
\usepackage{media9} 
\usepackage{easylist} 
\usepackage{ulem} 
\usepackage[pdftex]{hyperref}
\hypersetup{% 
  colorlinks=true,allcolors=ULlinkcolor,citecolor=blue,pdftitle={Mémoire de thèse}, pdfauthor={Sébastien Meghezi}, pdfsubject={Biomécanique et génie tissulaire}, pdfkeywords={mécanique, génie tissulaire, collagène, cellules, agents de réticulation, remodelage} %
}

\newcommand{\hlgrisclair}[1]{\sethlcolor{grisclair}\hl{#1}}
\addto\captionsfrench{\def\tablename{Tableau}} 


\usepackage[acronym,section,nonumberlist]{glossaries}
\newglossarystyle{modlong3col}{%
\glossarystyle{long3col}%
\renewcommand{\glsgroupskip}{}
}
\makeglossaries

\frenchbsetup{%
    CompactItemize=false,         
    ThinSpaceInFrenchNumbers=true 
  }

\bibliographystyle{apalike} % plain, abbrv, apalike, ieeetr

\titre{Title}
\auteur{Author}
\programme{Ph.D.}
\faculteUL{Faculty of Science and Engineering}
\annee{2015}
\settocdepth{subsection}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%\usepackage[comma,authoryear]{natbib} 

\begin{document}

\frontmatter                    % pages liminaires
\pagetitre                      % production de la page titre
\cleardoublepage
\tableofcontents                % production de la TdM
\cleardoublepage
\listoftables                   % production de la liste des tableaux
\cleardoublepage
\listoffigures                  % production de la liste des figures
\cleardoublepage

\mainmatter
\citep{Zaman2013}
\citep{LHeureux2007}

\bibliography{Bibliotrial}               % production de la bibliographie
\end{document}

Bibliotrial.bib file

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@phdthesis{Zaman2013,
author = {Zaman, Nishat},
file = {:Users/Sebastien/Documents/Doctorat/Bibliographie/Articletheque/Zaman - Influence of Loading and Matrix Stiffness on Airway Smooth Muscle Contractile Function and Phenotype within a 3D Microtissue Cul.pdf:pdf},
pages = {132},
school = {Dalhousie University (Halifax), Canada},
title = {{Influence of Loading and Matrix Stiffness on Airway Smooth Muscle Contractile 
Function and Phenotype within a 3D Microtissue Culture Model}},
type = {Master of Applied Science},
year = {2013}
}


@article{LHeureux2007,
author = {L'Heureux, Nicolas and McAllister, Todd N and de la Fuente, Luis M},
doi = {10.1056/NEJMc071536},
file = {:Users/Sebastien/Documents/Doctorat/Bibliographie/Articletheque/L'Heureux, McAllister, de la Fuente - Tissue-engineered blood vessel for adult arterial revascularization. - 2007.pdf:pdf},
issn = {1533-4406},
journal = {The New England journal of medicine},
keywords = {80 and over,Adult,Aged,Arteriovenous Shunt,Blood Vessel Prosthesis,Humans,Middle Aged,Prosthesis Design,Renal Dialysis,Surgical,Tissue Engineering,Vascular Surgical Procedures},
month = oct,
number = {14},
pages = {1451--3},
pmid = {17914054},
title = {{Tissue-engineered blood vessel for adult arterial revascularization.}},
url = {http://www.ncbi.nlm.nih.gov/pubmed/17914054},
volume = {357},
year = {2007}
}

Result

Thanks for your help!

Sebastien

Answer 1

The culprit is \usepackage{ulem} that changes \em (and \emph) to mean underline rather than italicize.

Underlining is something that should never appear in a printed text; the package ulem is very primitive in this respect and its underlining feature prohibits line breaks. However, nobody should ever use it for any purpose.

So, remove \usepackage{ulem} or, if you really need some of its features in your thesis, load it as

\usepackage[normalem]{ulem}

so it won't clobber \em and \emph.

Answer 2

You didn't include your Bibliotrial.bib file, but I'm guessing you're using the underline command there. The .bib file should only include the raw data for the bibliography; all of the stylistic choices should be made using the bibliography style file (apalike.bst in this case). So you should choose a different style that does what you want. If someone at your university already provided you with a thesis template, they probably also have a style file you can use. If you have to follow the style of a journal in your field, the journal's website may also provide their style file in the author/submission instructions. If you're on your own, you can make/modify style files so that the references appear exactly as you like (see Is there an (easy) way to create or personalize .bst files?).

That said, if you just need a quick but ugly fix, you can manually split the underline command in your .bib file:

title={\underline{Influence of Loading and Matrix Stiffness on Airway
       Smooth Muscle Contractile} \\ \underline{Function and ...}},