825 resultados para Pulkkinen, Risto
Resumo:
Ismo Pyyppönen
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Erkki Sevänen ja Risto Turunen
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Risto Ihamuotila
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Summary: Productivity, work quality and operation costs of excavators in site preparation on peatlands
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Summary: Assessing the impacts of ditch network maintenance on water ecosystems onthe basis of expert knowledge and integrating the assessments into decision analysis
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Simo Knuuttila