Hajer, Minke, e Maurizio Ambrosini. «Who help irregular migrants? Supporters of irregular migrants in Amsterdam (the Netherlands) and Turin (Italy): Supporters of irregular migrants in Amsterdam (the Netherlands) and Turin (Italy)». REMHU, Revista Interdisciplinar da Mobilidade Humana, vol. 28, fasc. 59, settembre 2020, pp. 199-16, https://doi.org/10.1590/1980-85852503880005912.