2025-06-032006https://epflicht.bibliothek.uni-halle.de/handle/123456789/15994508982588urn:nbn:de:gbv:3:2-28721986Online-Ressource (Text,133 KB)gerhttp://rightsstatements.org/vocab/InC/1.0/330Necessary and sufficient conditions to make the numbers count / Marlies Ahlert; Hartmut KliemtBook