1. AEM. (2021a). Feasibility study on granting concessions for providing media services of digital radio – DAB+. https://www.aem.hr/wp-content/uploads/2021/11/Studija-opravdanosti-DAB.pdf
2. AEM. (2021b). The results of the survey on interest in DAB + broadcasting. https://www.aem.hr/vijesti/rezultati-ankete-o-interesu-za-dab-emitiranje/
3. AEM. (2021c). Survey for expression of interest in digital broadcasting of radio channels in DAB+ technology. Retrieved from https://www.aem.hr/wp-content/uploads/2021/09/Bitne-informacije-o-DAB-emitiranju.pdf
4. AEM. (2024). Radio broadcasters. https://pmu.e-mediji.hr/Public/PregledRadioNakladnici.aspx
5. Every Window of Opportunity Needs a Frame to Support It. DAB in Spain: Analog Matters