Experiences with online literature searching in a water‐related subject field: Aqualine, Biosis, CA Search and Pascal, compared using the ESA/lnformation Retrieval System

In support of an environmental research program in the field of water quality management at the Delft University of Technology, an exhaustive literature search was carried out, both online and manually. For online searching, information was retrieved from the databases Aqualine, Biosis, CA Search and Pascal, using the ESA/lnformation Retrieval System. For manual searching, professional journals and current awareness services were carefully studied.