Herbert Kotzab, Christoph Teller, Heidrun R. Girz,
"The GS1 Databar and Its Future Application - Results from a Delphi Study"
, in Schnedlitz, Peter, Morschett, Dirk, Rudolph, Thomas, Schramm-Klein, Hanna: European Retail Research (ERR), Vol. 23, Nummer 2, Gabler, Wiesbaden, Seite(n) 77-88, 2009, ISBN: 978-3-8349-1923-6
Original Titel:
The GS1 Databar and Its Future Application - Results from a Delphi Study