Matas Terrón, A., Sánchez Barroso, C. and Ríos Ariza, J. M. (2020) “How covid-19 lockdown time was predicted: implications of ‘collective intelligence’ in educational research”, IJERI: International Journal of Educational Research and Innovation. Sevilla, España, (15), pp. 101–113. doi: 10.46661/ijeri.4903.