Voigt, Kristina; Welzl, Gerhard; Rediske, Gerda - In: Online Information Review 24 (2000) 2, pp. 116-123
analysis. This paper gives a comparative evaluation of data sources, i.e. online databases, databases on CD‐ROM and Internet … environmental chemicals: DADB‐Metadatabase of Online Databases, DACD‐Metadatabase of CD‐ROMs, DAIN‐Metadatabase of Internet … information depth is higher in commercial online databases and databases on CD‐ROM than in free Internet resources. Exceptions, e …