Christopher Tollefsen
Sic et non: some disputed questions in reproductive ethics
2004
in: Handbook of bioethics, Dordrecht : Springer
No problem: a response to Bernard Prusak's "The problem with the problem of the embryo"
2009
American Catholic Philosophical Quarterly 83/4
Some questions for philosophical embryology
2011
American Catholic Philosophical Quarterly 85/3
Augustine, Aquinas, and the absolute norm against lying
2012
American Catholic Philosophical Quarterly 86/1
Response to Robert Koons and Matthew O'Brien's "Objects of intention: a hylomorphic critique of the new natural law theory"
2013
American Catholic Philosophical Quarterly 87/4
Double effect and two hard cases in medical ethics
2015
American Catholic Philosophical Quarterly 89/3