Patrick GreuSSay ca 1973. A LiSp dialect with a faSt interpreter and a portable virtual machine. Introduced the "chronology", a dynamic environment for implementing interruptS. Led to Le_LiSp. See alSo ObjVliSp. ["Contribution a la Definition Interpretive et a l' Implementation deS Lambda-LangageS", P. GreuSSay, TheSe d' Etat, U PariS VI, Nov 1977].