\chapter{Introduction}
\sepinput{macros}
\sepinput{intro}

\section{Tomography}
\sepinput{tomo}

\subsection{Non-linear problems}
\sepinput{nonlinear}

\subsection{Tomography and null space}
\sepinput{nullspace}

\section{Overview of thesis}
\sepinput{forceful}

\subsection{Tau tomography}
\sepinput{tau}
%
%In reflection tomography the true location of the reflectors is unknown and
%must be simultaneously inverted for with velocity.
%A time error can be explained by either changing the reflector position or
%the medium velocity, Figure~\ref{fig:ambiguity}.  
%
%
\subsection{Steering filters}
\sepinput{steer}


%\subsection{Non-stationary filter regularization}
%
%
%
%
%
%
%
\subsection{Field tests}
\sepinput{field}

\subsection{Appendices}
\sepinput{nonstat}
\sepinput{append}
%
%
%In the last two sections I di
\section{Assumptions and limitations}
\sepinput{limit}


