Rodrigues, L. P., & da Costa, E. G. (2021). Impacto da pandemia de Covid-19 ao sistema social e seus subsistemas: reflexões a partir da teoria social de Niklas Luhmann / Impact of the Covid-19 pandemic on the social system and its subsystems: reflections from Niklas Luhmann’s social theory. Sociologias, 23(56), 302–335. https://doi.org/10.1590/15174522-102859