List of appearances with comment: also as Professor K. Riok

List of appearance comments
Found one story.

CharacterStoryReprints
José CariocaOs Astros Não Mentem (B 920267, 1993)br/ZC 1970c, br/ZC 2260b, co/MKA 175d, it/MG 446fb, it/RMG 19bfb, pt/HD 18-02p067

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