1. Alpers, P. 2016. 'Australian gun laws may seed their own destruction.' University of Sydney News, 4 December. Available from: sydney.edu.au/news-opinion/news/2016/12/04/australian-gun-laws-may-seed-their-own-destruction.html.
2. Alpers, P. 2017. 'Australian gun laws.' In A. Deckert and R. Sarre (eds), The Palgrave Handbook of Australian and New Zealand Criminology, Crime and Justice. Cham, Switzerland: Palgrave Macmillan.
3. Alpers, P. 2019. Mass gun killings in Australia, 1971-2018. [Online.] Sydney: GunPolicy.org, Sydney School of Public Health. Available from: www.gunpolicy.org/documents/5902-alpers-australia-mass-shootings-1971-2018.
4. Alpers, P. and Rossetti, A. 2016. 'Australian firearm amnesty buyback and destruction totals: Official tallies and media-reported numbers, 1987-2015.' GunPolicy.org, 3 May. Available from: www.gunpolicy.org/documents/5337-australia-firearm-amnesty-buyback-and-destruction-totals/file.
5. Alpers, P. and Rossetti, A. 2018. 'Firearm legislation in Australia 21 years after the National Firearms Agreement.' Gunpolicy.org, 2 April. Available from: www.gunpolicy.org/documents/6936-firearm-legislation-in-australia-21-years-after-the-national-firearms-agreement.