TIMMERMAN, Jos G. - OTTENS, Janneke J. - WARD, Robert C. The information cycle as a framework for defining information goals for water-quality monitoring. In Environmental management : international journal for decision makers, scientists and environmental auditors. - Springer - Verlag : Secaucus. ISSN 0364-152X, 2000, vol. 25, no. 3, s. 229-239.