new articles about origins of BJJ and Brazilian Judo

Alexandre Velly NUNES and Kátia RUBIO, As origens do judô brasileiro: a árvore genealógica dos medalhistas olímpicos

Rev. bras. educ. fís. esporte,v.26,n.4,p.667-678,2012

http://www.producao.usp.br/bitstream/handle/BDPI/40347/S1807-55092012000400011.pdf?sequence=1

In Portuguese about how Olympic medalists fit in Brazilian Judo greats

And his  Ph. D. thesis
https://www.lume.ufrgs.br/bitstream/handle/10183/48926/000828588.pdf?sequence=1





José Cairus, MODERNIZATION, NATIONALISM AND THE ELITE: the Genesis of Brazilian jiu-jitsu, 1905-1920
 
net resource http://revistas.udesc.br/index.php/tempo/article/view/2175180303022011100/1910


About origins of Judo in Brazil and Conde Koma


New material seems to come up.