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L' Enrichissement sans cause en droit administratif
Bayle, Gabriel, (1973)
Soziales Informationssystem und externe Effekte
Vogt, Detlef Rainer, (1975)
The Coase theorem and the empty core
Aivazian, Varouj A., (1981)
Introduction
Koenig, Evan F.,
Is there a persistence problem? : Part 1: Maybe
Koenig, Evan F., (1999)
Achieving "program neutrality" under a national retail sales tax