@misc{indiciae7ed9503db31b, title = {Scaphanocephalus expansus (Crepl.), a trematoda of the osprey, in North America}, author = {G. L. Hoffman and L.Y. Wu and A.A. Kingscote}, year = {1953}, doi = {10.2307/3273860}, url = {https://pubs.usgs.gov/publication/1013869}, note = {Source identifier: 1013869} }