1. Åqvist, L. (1967). Good Samaritans, contrary-to-duty imperatives, and epistemic obligations. Noûs, 1, 361–379.
2. Åqvist, L. (1984). Deontic Logic. In D. Gabbay and F. Guenthner (eds.) Handbook of Philosophical Logic, Vol. II, D. Reidel, pp. 605–714.
3. Åqvist, L. (1987). Introduction to deontic logic and the theory of normative systems. Naples: Bibliopolis.
4. Åqvist, L. (2002). Deontic Logic. In Gabbay and Guenthner (Ed.), Handbook of philosophical logic (Vol. 8, 2nd ed., pp. 147–264). Dordrecht/Boston/London: Kluwer Academic Publishers.
5. Åqvist, L. (2003). Conditionality and Branching Time in Deontic Logic: Further Remarks on the Alchourrón and Bulygin (1983) Example. In Segerberg and Sliwinski (Ed.), Logic, law, morality: thirteen essays in practical philosophy in honour of Lennart Åqvist, Uppsala Philosophical Studies (Vol. 51, pp. 13–37). Uppsala: Uppsala University.