- Script
- Roger Leloup
- Pencils
- Roger Leloup
- Inks
- Roger Leloup
- Colors
- ?
- Letters
- ?
- Genre
- science-fiction (science fiction)
- Reprints
- in Yoko Tsuno (Dupuis, 1972 series) #1 - Le trio de l'étrange (1972)
which is reprinted- in Jornal da B.D. (Sojornal, 1982 series) #79
- in Mini Comics (Interpresse, 1990 series) #2 - Yoko Tsuno: Nærkontakt i jordens indre
- in Yoko Tsuno (Dupuis, 1972 series) #1 - Trio in het onbekende (1972)
which is reprinted- in Cak ekstra (Slobodna Dalmacija, 1973 series) #4 - Yoko Tsuno - ÄŒudna trojka (1973)
- in Topix (Bastei Verlag, 1976 series) #2 - Joko Zuno das Karategirl - Geheimnisvolle Reise ([Juni] 1976)
- in Yoko Tsuno (Interpresse, 1979 series) #1 - Nærkontakt i jordens indre (1979)
- in Yoko Tsuno (Semic, 1979 series) #3 - Närkontakt i jordens inre (1981)
- in Yoko Tsuno (Interpresse, 1981 series) #1 - Nærkontakt i jordens indre (1981)
- in Yoko Tsuno (Carlsen Comics [DE], 1982 series) #1 - Unterirdische Begegnung (1982)
which is reprinted- in Carlsen Pocket (Carlsen Comics [DE], 1990 series) #6 - Yoko Tsuno - Unterirdische Begegnung (April 1990)
- in Yoko Tsuno (Cinebook, 2007 series) #7 - The Curious Trio ([October] 2012)
First part of the story "Le trio de l’étrange" which appears in numbers 1726 - 1742 of the magazine.