\documentclass[12pt,a4paper,ngerman]{article}
\usepackage[left=3cm,right=3cm,top=2.5cm]{geometry}

\usepackage[utf8]{inputenc}
\usepackage[backend=biber, style=authoryear-icomp]{biblatex}
\usepackage{ot-tableau}
\usepackage{easylist}
\usepackage{hanging}
\usepackage{hyperref}
\usepackage{blindtext}
\usepackage{tipa}
\usepackage{cgloss4e}
\usepackage{gb4e}
\usepackage{qtree}
\usepackage{enumerate}
\usepackage{longtable}
\usepackage{textgreek}
\usepackage{amsmath}


\addbibresource{uni}

\title      {}
\author     {}
\date       {}

\setlength{\parindent}{0em}
\setlength{\parskip}{0.25em}

\pagenumbering{gobble}

\newcommand{\linia}{\rule{\linewidth}{0.5pt}}
\makeatletter
\renewcommand{\maketitle}{\begin{center}
	\huge \@title\end{center}
{\large\@author\hfill\@date\\}
\linia\\}

\begin{document}

\maketitle

\newpage
\printbibliography
\end{document}