By Crittenden P.D.   in Lichenologist

ISSN:0024-2829|28|4|347-354

Academic Press‎(1996)‎

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By Crittenden P.D.   in Lichenologist

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Academic Press‎(2000)‎

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By Hyvarinen M.   Crittenden P.D.   in Environmental and Experimental Botany

ISSN:0098-8472|40|1|67-76

Elsevier‎(1998)‎

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By Kytöviita M.   Crittenden P.D.   in Lichenologist

ISSN:0024-2829|34|6|533-537

Academic Press‎(2002)‎

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By Mayrhofer H.   Moberg R.   Crittenden P.D.   in Lichenologist

ISSN:0024-2829|33|1|1-1

Academic Press‎(2001)‎

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By Walker T.R.   Crittenden P.D.   Young S.D.   in Environmental Pollution

ISSN:0269-7491|125|3|401-412

Elsevier‎(2003)‎

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By Walker T.R.   Young S.D.   Crittenden P.D.   Zhang H.   in Environmental Pollution

ISSN:0269-7491|121|1|11-21

Elsevier‎(2003)‎

Access to resources Favorite 9.512304

By Murtagh G.J.   Dyer P.S.   McCLURE P.C.   Crittenden P.D.   in Lichenologist

ISSN:0024-2829|31|3|257-267

Academic Press‎(1999)‎

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By Crittenden P. D.   Llimona X.   Sancho L. G.   in Canadian Journal of Botony

ISSN:1480-3305|85|10|1003-1006

NRC Research Press‎(2007)‎

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