Avelar-Rosa, Bruno, António M. M. Quaresma, and Jorge Arede. 2016. “Are martial arts and combat sports a school for life? Relationships between sport attitudes and quality of life (intermediate results)”. Revista de Artes Marciales Asiáticas 11 (2s):106-7. https://doi.org/10.18002/rama.v11i2s.4194.