Cahiers ERTA, Numéro 27, 2021, pp. 34 - 56
https://doi.org/10.4467/23538953CE.21.032.14385Cahiers ERTA, Numéro 27, 2021, pp. 58 - 83
https://doi.org/10.4467/23538953CE.21.030.14383Cahiers ERTA, Numéro 27, 2021, pp. 111 - 116
https://doi.org/10.4467/23538953CE.21.034.14387