Perri, Stefano, and Roberto Lampa. “When Small-Sized and Non-Innovating Firms Meet a Crisis: Evidence from the Italian Labour Market”. PSL Quarterly Review 71, no. 284 (March 28, 2018): 61–83. Accessed September 25, 2022. https://rosa.uniroma1.it/rosa04/psl_quarterly_review/article/view/13855.