Mendoza-Alonzo, P. ., and D. . Parra-Sepúlveda. “The Legal Principle That Solidary Liability Cannot Be Presumed: From the Code Napoleon to the Principles of Soft Law”. Jurídicas, vol. 12, no. 2, July 2015, pp. 103-16, doi:10.17151/jurid.2015.12.2.8.