SpringerLink (Online service), Becker, E., Buhse, W., Günnewig, D., & Rump, N. (2003). Digital Rights Management: Technological, Economic, Legal and Political Aspects (1st ed. 2003.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/b12637
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Eberhard Becker, Willms Buhse, Dirk Günnewig, και Niels Rump. Digital Rights Management: Technological, Economic, Legal and Political Aspects. 1st ed. 2003. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2003. https://doi.org/10.1007/b12637.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Digital Rights Management: Technological, Economic, Legal and Political Aspects. 1st ed. 2003. Springer Berlin Heidelberg : Imprint: Springer, 2003. https://doi.org/10.1007/b12637.
