“…It is telling that Vickery's 1994 enumeration of American contributions in the early years of Journal of Documentation [52] show that these all dealt with aspects of document technology. Certainly, in the rather later development of online information systems, although these came to be widely used in Britain, and in continental Europe, most of the development was carried out in the USA [50,69,70] -although not necessarily by Americans: as Hahn [50, p. 45] puts it, 'The genesis of online retrieval was, with a few exceptions, an American phenomenon. However many of the key pioneers were not American-born -the United States was the fortunate recipient of a significant brain drain from many other countries'.…”