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Harms H (1998) Sulphur and Stress. Nutr Ecosyst 2:203-221
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Pedersen CA, Knudsen L, Schnug E (1998) Sulphur fertilisation. Nutr Ecosyst 2:115-134
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Dämmgen U, Walker K, Grünhage L, Jäger H-J (1998) The atmospheric sulphur cycle. Nutr Ecosyst 2:75-114
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Diagnosis of sulphur nutrition
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Schnug E, Haneklaus S (1998) Diagnosis of sulphur nutrition. Nutr Ecosyst 2:1-38
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Harms H (1998) Sulphur and stress. Nutr Ecosyst 2:115-134
Sulphur in agroecosystems
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Schnug E, Berlinger H, Beringer H (eds) (1998) Sulphur in agroecosystems. Dordrecht; Boston; London: Kluwer Academic Publishers, VII, 221 p, Nutr Ecosyst 2
Proceedings of the 11th International World Fertilizer Congress held at Faculty of Agricultural and Applied Biological Sciences, Universiteit Gent on 7 - 13 September 1997 in Gent, Belgium : vol. 2
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Cleemput O van, Haneklaus S, Hofman G, Schnug E, Vermoesen A (eds) (1998) Proceedings of the 11th International World Fertilizer Congress held at Faculty of Agricultural and Applied Biological Sciences, Universiteit Gent on 7 - 13 September 1997 in Gent, Belgium : vol. 2. Braunschweig: FAL, 748 p
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Cleemput O van, Haneklaus S, Hofman G, Schnug E, Vermoesen A (eds) (1998) Proceedings of the 11th International World Fertilizer Congress held at Faculty of Agricultural and Applied Biological Sciences, Universiteit Gent on 7 - 13 September 1997 in Gent, Belgium : vol. 1. Braunschweig: FAL, 726 p
Proceedings of the 11th International World Fertilizer Congress held at Faculty of Agricultural and Applied Biological Sciences, Universiteit Gent on 7 - 13 September 1997 in Gent, Belgium : vol. 3
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Cleemput O van, Haneklaus S, Hofman G, Schnug E, Vermoesen A (eds) (1998) Proceedings of the 11th International World Fertilizer Congress held at Faculty of Agricultural and Applied Biological Sciences, Universiteit Gent on 7 - 13 September 1997 in Gent, Belgium : vol. 3. Braunschweig: FAL, 466 p