1. Akeno Giant Air Shower Array (AGASA) covering 100 km2 area
2. The Karlsruhe cosmic ray project KASKADE;Doll;KFK 4686, Karlsruhe report,1990
3. Comparison of hadronic interaction models used in Air shower simulations and their influence on shower development and observables;Knapp;FZKA 5828, Karlsruhe report,1996