Twentyfour years have gone by since the publication of K. Lohner and H. MOiler'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...