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\preface

This volume describes the installation and general operation of the PP
software. More details about its history, development and objectives
can be found in {\em PP Manual} introduction pages.

There are several PP related papers in the directory \file{doc}.
In particular, a general overview of PP can be found in the
paper~\cite{IFIP.PP}.

A guide to writing programs that interact with PP is given in {\em PP
Volume 2: Programmer's Guide}.

A guide to the user-visible parts of PP can be found in {\em PP Volume
3: Users Guide}.

