Klaus Ambos-Spies Hans-Christian Neis Sebastiaan Terwijn Genericity and Measure for Exponential Time. 221-232 1994 conf/mfcs/1994 MFCS db/conf/mfcs/mfcs94.html#Ambos-SpiesNT94 http://dx.doi.org/10.1007/3-540-58338-6_69