The 4Cs paper, written by several of our research affiliates, was recently translated into Brazilian Portuguese: https://domsanchezdaddy.medium.com/do-ssc-e-rack-para-o-4cs-apresentando-uma-nova-estrutura-para-negocia%C3%A7%C3%A3o-de-participa%C3%A7%C3%A3o-em-bdsm-6ae14fb236ef
It’s so amazing to see this kind of work gain a broader audience.
For those of you who would like the original American English translation, 4C’s Framework for Negotiation is right here.