Friedrich Schneider, Helmut Herwartz, Egle Tafenau,
"Regional patterns of the shadow economy: Modelling issues and evidence from the European Union"
, in Friedrich Schneider: Handbook on the Shadow Economy, Edward Elgar Publishing, Cheltenham, Seite(n) 201-260, 2011
Original Titel:
Regional patterns of the shadow economy: Modelling issues and evidence from the European Union