U Dortmund, 1984. ApplicATive language based on Modula-2, enhanced by signATures (grammars) terms (trees) and ATtribute couplings (functions on trees). Used for specificATion of language translATors. ["MARVIN - A Tool for ApplicATive and Modular Compiler SpecificATion", H. Ganziger et al, Forsch 220, U Dortmund, Jul 1986].