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Hunter, R. E.; Crawford, J. A.; Ambrose, R. E. (October 1988). "Prey Selection by Peregrine Falcons during the Nestling Stage". Journal of Wildlife Management. 52 (4): 730–736. doi:10.2307/3800938. JSTOR3800938.
Schmidt, Gerald D. (October 1965). "Corynosoma bipapillum sp. n. from Bonaparte's Gull Larus philadelphia in Alaska, with a Note on C. constrictum Van Cleave, 1918". The Journal of Parasitology. 51 (5): 814–816. doi:10.2307/3276166. JSTOR3276166. PMID5857284.
Gilbert, N. C. (December 1905). "Occurrence of Echinostomum spinulosum Rud". The American Naturalist. 39 (468): 925–927. doi:10.1086/278588. JSTOR2455269. S2CID84335301.
Farley, J. (June 1963). "A Redescription of Gigantobilharzia lawayi Brackett, 1942". The Journal of Parasitology. 49 (3): 465–467. doi:10.2307/3275817. JSTOR3275817.
Hunter, R. E.; Crawford, J. A.; Ambrose, R. E. (October 1988). "Prey Selection by Peregrine Falcons during the Nestling Stage". Journal of Wildlife Management. 52 (4): 730–736. doi:10.2307/3800938. JSTOR3800938.
Schmidt, Gerald D. (October 1965). "Corynosoma bipapillum sp. n. from Bonaparte's Gull Larus philadelphia in Alaska, with a Note on C. constrictum Van Cleave, 1918". The Journal of Parasitology. 51 (5): 814–816. doi:10.2307/3276166. JSTOR3276166. PMID5857284.
Gilbert, N. C. (December 1905). "Occurrence of Echinostomum spinulosum Rud". The American Naturalist. 39 (468): 925–927. doi:10.1086/278588. JSTOR2455269. S2CID84335301.
Farley, J. (June 1963). "A Redescription of Gigantobilharzia lawayi Brackett, 1942". The Journal of Parasitology. 49 (3): 465–467. doi:10.2307/3275817. JSTOR3275817.
Schmidt, Gerald D. (October 1965). "Corynosoma bipapillum sp. n. from Bonaparte's Gull Larus philadelphia in Alaska, with a Note on C. constrictum Van Cleave, 1918". The Journal of Parasitology. 51 (5): 814–816. doi:10.2307/3276166. JSTOR3276166. PMID5857284.
Gilbert, N. C. (December 1905). "Occurrence of Echinostomum spinulosum Rud". The American Naturalist. 39 (468): 925–927. doi:10.1086/278588. JSTOR2455269. S2CID84335301.