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[The role of the State Institute for Protection against Air Pollution of North Rhine-Westphalia in the clarification of the causes of new types of forest dieback]

1987

Stratmann, H. (Landesanstalt fuer Immissionsschutz des Landes Nordrhein-Westfalen, Essen (Germany, F.R.))

plant diseases dieback maladie des plantes enfermedades de las plantas forschung air pollution 6bosques rhenanie du nord-westphalie/ recher landesanstalt fuer immissionsschutz des landes nordrhein-westfalen (lis) contaminacion del aire north rhine-westphalia/ research 946.3 ...
ZB MED Nutrition. Environment. Agriculture - Germany
[Results of growth and structure analyses in pollution diseased spruce stands]

1985

Athari, S. | Kramer, H.

measurement picea abies baum agentes nocivos parameter facteur nuisible beziehung nadelverlust baumhoehe aussageproblematik 562.21 nadelverlust einzelbaum (430.1-43.48) ...
ZB MED Nutrition. Environment. Agriculture - Germany
[The role of the State Institute for Ecology, Landscape Development and Forestry Planning of North Rhine-Westphalia in the clarification of the causes of new types of forest dieback]

1987

Schmidt, A. (Landesanstalt fuer Oekologie, Landschaftsentwicklung und Forstplanung des Landes Nordrhein-Westfalen, Recklinghausen (Germany, F.R.))

research plant diseases recherche north rhine-westphalia dieback maladie des plantes contaminacion del aire onforet landesanstalt fuer oekologie 76bosques deperissement term landschaftsentwicklung und forstplanung des landes nordrhein-westfalen (loelf) ...
ZB MED Nutrition. Environment. Agriculture - Germany