Forman, Christopher (contributor); Goldfarb, Avi (contributor) - 2002 - [Elektronische Ressource]
To be sure, there has been much progress. For information about PC use, see e.g., National Telecommunications …
Information Administration (2001), Census (2001), and Goolsbee amd Klenow (1999); and for the beginnings in
measuring electronic … Internet applications and other networking services. Harte Hanks
Market Intelligence (hereafter HH) collects this information …