Corey L. Gucker: Fraxinus pennsylvanicaFire Effects Information System. USDA Forest Service. Viitattu 18.6.2011. (englanniksi)
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Harvey E. Kennedy, Jr.: Green AshSilvics of North America – Volume 2: Hardwoods. Northeastern Area State & Private Forestry. Arkistoitu 26.4.2011. Viitattu 18.6.2011. (englanniksi)
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Westwood, M., Oldfield, S., Jerome, D. & Romero-Severson, J.: Fraxinus pennsylvanicaIUCN Red List of Threatened Species. Version 2019.2. 2017. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 26.7.2019. (englanniksi)
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Harvey E. Kennedy, Jr.: Green AshSilvics of North America – Volume 2: Hardwoods. Northeastern Area State & Private Forestry. Arkistoitu 26.4.2011. Viitattu 18.6.2011. (englanniksi)