Van Hespen, I. (2019). De inzet van privaat gewapend maritiem beveiligingspersoneel of Privately Contracted Armed Security Personnel (PCASP) aan boord van Belgische en Nederlandse koopvaardijschepen. Tijdschrift voor Veiligheid 18(1): 35-54. https://dx.doi.org/10.5553/TvV/187279482019018001003, meer
Van Hespen, I. (2016). Developing the concept of maritime piracy: a comparative legal analysis of international law and domestic criminal legislation. Int. J. Mar. Coast. Law 31(2): 279-314. https://dx.doi.org/10.1163/15718085-12341395, meer
Van Hespen, I. (2016). Prosecuting maritime piracy: domestic solutions to international crimes. The Military Law and the Law of War Review = Revue de Droit Militaire et de Droit de la Guerre 54(2): 331-335, meer
Van Hespen, I. (2014). Protecting merchant ships from maritime piracy by privately contracted armed security personnel: a comparative analysis of flag state legislation and port and coastal state requirements. J. Marit. Law Commer. 45(3): 361-400, meer