Keeping Children Safe online with Limited Resources: Analyzing what is seen and heard Autori: Aleksandar Jevremović, Mladen Veinović, Milan Čabarkapa, Marko Krstić, Ivan Čorbev, Ivica Dimitrovski, Nuno Garcia, Nuno Pombo, Miloš Stojmenović Časopis: IEEE Access DOI: 10.1109/ACCESS.2021.3114389