Important bird areas in Europe: Priority sites for conservation: 1. Northern Europe
Heath, M.F.; Evans, M.I. (Ed.) (2000). Important bird areas in Europe: Priority sites for conservation: 1. Northern Europe. Birdlife Conservation Series, 8. Birdlife International: Cambridge. ISBN 0-946888-34-5. XIII, 866 pp.
Heath, M.F.; Evans, M.I. (Ed.) (2000). Important bird areas in Europe: Priority sites for conservation: 2. Southern Europe. Birdlife Conservation Series, 8. Birdlife International: Cambridge. ISBN 0-946888-35-3. XIII, 791 pp., more
