By Engel John J.   in Nova Hedwigia

ISSN:0029-5035|99|1-2|157-170

E. Schweizerbart'sche Verlagsbuchhandlung‎(2014)‎

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By Engel John J.   in Nova Hedwigia

ISSN:0029-5035|93|3-4|401-410

E. Schweizerbart'sche Verlagsbuchhandlung‎(2011)‎

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By Engel John J.   in Nova Hedwigia

ISSN:0029-5035|80|3-4|367-386

E. Schweizerbart'sche Verlagsbuchhandlung‎(2005)‎

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By Engel John J.   in Nova Hedwigia

ISSN:0029-5035|85|3-4|417-428

E. Schweizerbart'sche Verlagsbuchhandlung‎(2007)‎

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By Engel John J.   in Nova Hedwigia

ISSN:0029-5035|88|3-4|335-346

E. Schweizerbart'sche Verlagsbuchhandlung‎(2009)‎

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By Engel John J.   in Nova Hedwigia

ISSN:0029-5035|100|3-4|553-582

E. Schweizerbart'sche Verlagsbuchhandlung‎(2015)‎

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By Engel John J.   Glenny David   in Nova Hedwigia

ISSN:0029-5035|87|3-4|277-313

E. Schweizerbart'sche Verlagsbuchhandlung‎(2008)‎

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By Engel John J.   Glenny David   in Nova Hedwigia

ISSN:0029-5035|95|3-4|319-336

E. Schweizerbart'sche Verlagsbuchhandlung‎(2012)‎

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By Engel John J.   Braggins John E.   in Taxon

ISSN:1996-8175|54|3|665-680

International Association for Plant Taxonomy‎(2005)‎

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By Engel John J.   Merrill Gary L. S.   in Taxon

ISSN:1996-8175|51|3|571-572

International Association for Plant Taxonomy‎(2002)‎

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