Marginal Wood Fern – Dryopteris marginalis

by | Dec 9, 2023 | Ferns, NE Native Ferns

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Udo Birnbaum (born 8 February 1937) is an Austrian modern pentathlete and fencer. He competed at the 1960, 1964 and 1968 Summer Olympics.[1] His son, Axel Birnbaum, fenced at the 1988 Summer Olympics.[2]

References

  1. ^ "Udo Birnbaum Olympic Results". sports-reference.com. Archived from the original on 17 April 2020. Retrieved 11 December 2010.
  2. ^ "Axel Birnbaum Olympic Results". sports-reference.com. Archived from the original on 17 April 2020. Retrieved 16 July 2011.

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