1999: R & D and Water Management Systems in a Perspective of Sustainable Development. (Germany, Spain, France, United Kingdom, Italy). INGU / Economie et Humanisme / Ecologic / Leeds Metropolitan University / CUDEM / Università Commerciale Luigi Bocconi / IEFE / ASP.

Farmer, Andrew M (Ed.) 1999: Implementation of the 1991 EU Urban Waste Water Treatment Directive and it's Role in Reducing Phosphate Discharges.

Bär, Stefani; R. Andreas Kraemer; Mirjam Borowietz 1999: Analyse und Bewertung des Vorschlages für eine Wasserrahmenrichtlinie. Ecologic - Gesellschaft für Internationale und Europäische Umweltforschung, Berlin.

Piotrowski, Ralph; Stefan Kratz 1999: Eco-Labelling in the Globalised Economy. Ecologic-Centre for International and European Environmental Research, Berlin.

Kraemer, R. Andreas; Sandra Hollerbuhl and Gabriele Labes (eds.) 1999: Environmental Policy - Soil Protection Policies within the European Union]: The Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU).

Kahlenborn, Walter; R. Andreas Kraemer 1999: Triple-A für die Umwelt: Finanzrating und Öko-Rating. Ergänzender Abschlußbericht. Berlin.

Piotrowski, Ralph; Wenke Hansen; R. Andreas Kraemer 1999: Implementation of European Legislation: Waste Water Treatment in Europe. Berlin.

This analysis provides a horizontal comparison of environmental policies in eight countries in the area of clean air policy, water management, waste management, and nature conservation. It also describes the level of integration of environmental concerns into economic policy, energy policy, agricultural policy and transport policy.

Piotrowski, Ralph; R. Andreas Kraemer 1998: Financial Capacity of the Water Sector and Water Prices in Europe – A Comparison. Paper in the Research Project "Interactions between the Management of the Urban Water Cycle and Environmental Technologies in a Sustainable Development Perspective".

Kraemer, R. Andreas; Michael Strübin; Wenke Hansen 1998: Money Flows: Economics of Water Supply and Sewerage in Germany. Ecologic - Centre for International and European Environmental Policy, Berlin.

Kraemer, R. Andreas; Michael Strübin; 1998: Sustainability of European Water Management: A Catalogue of Criteria. Ecologic - Centre for International and European Environmental Policy, Berlin.

Kraemer, R. Andreas; Ralph Piotrowski; Mathias Hohmann et al. 1998: From Source to Sea? Approaches to River Basin Management in Germany. Ecologic - Institute for International and European Environmental Policy, Berlin.

Kahlenborn, Walter; R. Andreas Kraemer 1998: Subsidiarity and Policy Integration. Ecologic - Institute for International and European Environmental Policy, Berlin.

Kraemer, R. Andreas; Stefani Bär 1998: Interaction between Regulatory Reqimes in Environmental Policy: IPPC and EMAS in Germany. Berlin.

Kraemer, R. Andreas; Ralph Piotrowski 1998: Comparison of Water Prices in Europe. Summary Report. A Contribution to the Research Projects: R&D and Water Management Systems, Research Contract ENV4-CT96-0189, European Commission, Directorate-General 12 (Research), Water 21: Toward Sustainable European Water Management, Research Contract ENV4-CT96-0196, European Commission, Directorate-General 12 (Research).