\documentclass[a4paper,landscape]{scrartcl}

\usepackage[top=2cm,left=1cm,right=1cm,bottom=1cm]{geometry}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[ngerman]{babel}

\usepackage{color}

\usepackage{amsmath,amsthm,amssymb}
\usepackage{mathtools}

\usepackage{array}

\usepackage{ytableau}

\usepackage{enumerate}

\usepackage{fancyhdr}
\pagestyle{fancy}

\usepackage{booktabs}
\usepackage{multirow}

\fancyhf{}
\lhead{Konferenz der Informatikfachschaften}
\chead{KIF 41,5 -- Erlangen}
\rhead{Unterschriftenliste BMBF}
\cfoot{}

\usepackage{longtable}

\setlength{\headheight}{28pt}
\addtolength{\textheight}{-28pt}

\setlength{\parskip}{7pt}
\setlength{\parindent}{0pt}

%% this took me an hour or so. hope it's worth it
\DeclareUnicodeCharacter{1ED1}{\resizebox{.80em}{!}{\resizebox{.4em}{!}{\^{o}}\hspace{-1mm}\'{}}\hspace{-1mm}{}}

\begin{document}

\begin{center}
	\begin{longtable}{|m{.02\textwidth}|m{.15\textwidth}|m{.11\textwidth}|m{.13\textwidth}|m{.03\textwidth}|m{.03\textwidth}|m{.35\textwidth}|}
	\textbf{Nr.} & \textbf{Name} & \textbf{Vorname} & \textbf{Name der Hochschule} & \multicolumn{2}{|c|}{\textbf{Student}} & \textbf{Unterschrift} \\
	\hline
	& & & & ja & nein & \\
	\hline
	\hline
	\endhead
{% for t in teilnehmer %}
	\Large {{ t['num'] }} & \Large {{ t['nachname'] }} & \Large {{ t['vorname']
	}} & \large {{ t['hochschule'] }} & \vspace{2em} & \\
	\hline
{% endfor %}
	\end{longtable}
\end{center}

\end{document}
