@Book{TP93,
author   ={{Stephan von} Bechtolsheim},
title    ={{\TeX} in {P}ractice: {B}asics},
volumes  ={3},
publisher={Springer-Verlag},
year     =1993,
location ={Berlin, Heidelberg etc.},
ISBN     ={0-387-97595-0},
}