Aksović, N., Bjelica, B., Joksimović, M., Skrypchenko, I., Filipović, S., Milanović, F., Pavlović, B., Ćorluka, B. and Pržulj, R. (2020) “Effects of aerobic physical activity to cardio-respiratory fitness of the elderly population: systematic overview”, Pedagogy of Physical Culture and Sports, 24(5), pp. 208–218. doi: 10.15561/26649837.2020.0501.