Di Blasi, M., Gullo, S., Mancinelli, E., Freda, M. F., Esposito, G., Gelo, O. C. G., Lagetto, G., Giordano, C., Mazzeschi, C., Pazzagli, C., Salcuni, S., & Lo Coco, G. (2021).
Psychological distress associated with the COVID-19 lockdown: A two-wave network analysis. Journal of Affective Disorders, 284, 18–26.

The full arcticle is available here: 
doi: https://doi.org/10.1016/j.jad.2021.02.016