* Appel, Jacob M. (2004). "A Duty to Kill? A Duty to Die? Rethinking the Euthanasia Controversy of 1906". Bulletin of the History of Medicine. 78 (3): 610–634. doi:10.1353/bhm.2004.0106. PMID15356372. S2CID20754659.
Burdette, Amy M.; Hill, Terrence D.; Moulton, Benjamin E. (March 2005). "Religion and Attitudes Toward Physician-Assisted Suicide and Terminal Palliative Care". Journal for the Scientific Study of Religion. 44 (1): 79–93. doi:10.1111/j.1468-5906.2005.00266.x. JSTOR3590520.
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Burdette, Amy M.; Hill, Terrence D.; Moulton, Benjamin E. (March 2005). "Religion and Attitudes Toward Physician-Assisted Suicide and Terminal Palliative Care". Journal for the Scientific Study of Religion. 44 (1): 79–93. doi:10.1111/j.1468-5906.2005.00266.x. JSTOR3590520.
* Appel, Jacob M. (2004). "A Duty to Kill? A Duty to Die? Rethinking the Euthanasia Controversy of 1906". Bulletin of the History of Medicine. 78 (3): 610–634. doi:10.1353/bhm.2004.0106. PMID15356372. S2CID20754659.
* Appel, Jacob M. (2004). "A Duty to Kill? A Duty to Die? Rethinking the Euthanasia Controversy of 1906". Bulletin of the History of Medicine. 78 (3): 610–634. doi:10.1353/bhm.2004.0106. PMID15356372. S2CID20754659.