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%% This is a LaTeX abstract template for the NETTAB 2016 conference
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\documentclass[12pt,a4paper]{article}

\usepackage[italian]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8x]{inputenc}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{mathrsfs}
\usepackage[colorlinks]{hyperref}
\usepackage{helvet}
\renewcommand{\familydefault}{\sfdefault}
\hypersetup{hidelinks}
\addtolength{\hoffset}{-2cm}
\addtolength{\textwidth}{4cm}
\addtolength{\voffset}{-2cm}
\addtolength{\textheight}{5cm}


\begin{document}

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%% Insert the abstract title in the curly brackets after the 
%% \section* tag
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\section*{Title}

\vspace{0.5cm}

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%% Author(s)
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\noindent{{Name Surname$^1$}, {Name Surname$^2$} and {Name Surname$^{1,2}$} }

\vspace{0.5cm}

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%% Author's affiliation 
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\noindent{$^1${\fontsize{11}{13.2}\selectfont Affiliation 1, City, Country}}\\
\noindent{$^2${\fontsize{11}{13.2}\selectfont Affiliation 2, City, Country}}\\

\vspace{0.3cm}

\noindent
\textbf{Introduction}\\

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%% Introduction
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\noindent{\fontsize{11}{13.2}\selectfont This is the text of the Introduction section. This abstract can be used as a template and for example purposes. When using this abstract as a template, please overwrite the text, so that formatting is conserved, and remove all text that is high-lighted in red.
Note that the page size is A4, with all margins of 2.0 cm. All paragraphs must be justified. Single line spacing must be used.} \\
\selectfont

\noindent
\textbf{Methods}\\

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%% Methods
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\noindent{\fontsize{11}{13.2}\selectfont This is the text of the Methods section. The font type is Arial. Different font sizes apply, according to the part of the abstract. The title must have a font size of 14pts. Section headings must use a size of 12pts, while the body of the sections must be rendered at 11pts. Authors’ names must be 11pts, while affiliations and bibliography must be 10pts.
Bibliographic references must be as complete as possible, thus including authors’ names (only the first three names, when they are four or more), title, journal, year, volume, issue, pages.}\\ 

\noindent
\textbf{Results}\\

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%% Results
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\noindent{\fontsize{11}{13.2}\selectfont This is the text of the Results section. Please follow instructions so that we can have homogeneous formats for all abstracts.}\\ 

\noindent
\textbf{Conclusions}\\

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%% Conclusions
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\noindent{\fontsize{11}{13.2}\selectfont This is the text of the Conclusions section. This section can be omitted for poster abstracts.}\\ 

\noindent
\textbf{References}\\

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%% References
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\indent{\fontsize{10}{12}\selectfont 1. Authors. Title. Journal. Year. Volume(Issue):Pages. DOI}\\
\indent{\fontsize{10}{12}\selectfont 2. Authors. Title. Journal. Year. Volume(Issue):Pages. DOI}\\
\indent{\fontsize{10}{12}\selectfont 3. Authors. Title. Journal. Year. Volume(Issue):Pages. DOI}\\
\indent{\fontsize{10}{12}\selectfont 4. Authors. Title. Journal. Year. Volume(Issue):Pages. DOI}\\

\end{document}