Twentyfour years have gone by since the publication of K. Lohner and H. Muller's comprehen- sive work "Gemischbildung und Verbrennung im Ottomotor" in 1967 1.1]' Naturally, the field of mixture formation and combustion in the spark-ignition engine has wit- nessed great technological advances and many new findings in the intervening years, so that the time seemed ripe for presenting a summary of recent research and developments. There- fore, I gladly took up the suggestion of the editors of this series of books, Professor Dr. H. List and Professor Dr. A. Pischinger, to write a book...