Bibliography
Nathan Never, Legs Weaver and their science fiction universe are the result of the co-operation of three authors: MICHELE MEDDA, born in Cagliari on December 7th 1962; ANTONIO SERRA
, born in Alghero on February 16th 1963 and BEPI VIGNA,  born in Baunei (Nuoro) on July 24th 1957. Medda, Serra and Vigna met at  the beginning of the Eighties at the cultural centre "Il Circolo", run  by Gianfranco Ghironi. They come from different educational backgrounds:  Medda has a degree in humanities and wrote his thesis on Italian  detective stories; Serra published a non-commercial science fiction  magazine for the lovers of this genre with the title "Fate largo!" Vigna  has a degree in law and has worked as an attorney, in addition to  signing many articles for the newspaper"L'Unione Sarda" mainly  concerning the study of the island's popular traditions. Yet the three  men share a passion for cartoons and together they founded the group  "Bande Dessinée". Their acquaintance with Alfredo Castelli earned them  the approval of some of their proposed subjects for Martin Mystère and  then together they wrote their first story of the Detective  dell'Impossibile, which is how they were eventually introduced to Sergio  Bonelli Editore. Still working as a trio they created many more  scripts for "Martin Mystère", "Dylan Dog" and "Zona X". Finally, after  editing the Nathan Never and Legs Weaver project together, they began to  work separately on the scripts of individual stories. Medda has  individually written adventures of Tex, Nick Raider and Dylan Dog, in  addition to a comic strip "Digitus Dei" illustrated by Casini and  published by Magic Press. (reprinted by Peter Pen), and collaborated to  series from numerous publishers like Disney, Rainbow, Marvel/Panini  Comics.In 2009 Caravan hits the newstands, mini-series in 12 episodes  published by Sergio Bonelli Editore. He is currently working on his  miniseries Lukas, co-authored with Michele Benevento, hitting newsstands  in march 2014.
Serra, who is also the head of the editorial board of  Nathan Never and Legs Weaver, has been the protagonist of a long  "conversation" on the graphic novel genre contained in "Eroi di  inchiostro" by Alberto Ostini and Cesare Garbellini; his new character,  Gregory Hunter, came out in the year 2001 and in 2009 Greystorm made its  debut, a mini-series co-created  with Gian Mauro Cozzi. Vigna, an  expert in Franco-Belge comic strips, has written scripts for Nick Raider  and Zagor and boots the series Asteroide Argo, a spinoff of the Nathan  Never monthly series. He has published a story with elements of the  fantastic entitled "L'estate dei dischi volanti", published by  Condaghes, as well as a number of essays (together with Medda); working  jointly with the other two components of the "banda dei sardi" and with  Michele Masiero, he has also written "Raccontare Martin Mystère"  (Glamour).