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Helsinki: National Board of Waters and the Environment, 1993
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Copenhagen, 1996
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Helsinki, 1986
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Springer Science and Business Media LLC, 1989
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IWA Publishing, 1993
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1993
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Agricultural and Food Science, 1993
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Royal Swedish Academy of Sciences, 2001
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American Bryological and Lichenological Society, 2001
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1994
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Agricultural and Food Science, 1994
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Elsevier BV, 2005
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Elsevier BV, 2005
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Informa UK Limited, 2003
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Royal Swedish Academy of Sciences, 2003
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American Bryological and Lichenological Society, 2003
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Springer Science and Business Media LLC, 2001
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Elsevier BV, 2000
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Elsevier BV, 1999
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IWA Publishing, 1995