Map of Mars 1894 Leo Brenner (Spiridon Gopčević) Lussinpiccolo observations 1894 Astronomische Nachrichten  137/3288 1895. Map of Mars 1896 Leo Brenner (Spiridon Gopčević) Lussinpiccolo observations 1896 Abhandlungen der Kgl Akademie des Wissenschaften zu Berlin, 1897, fig 3   Map of Mars 1904 Leo Brenner (Spiridon Gopčević) Lussinpiccolo observations 1894-1903 Astronomische Rundschau Lussinpiccolo, v. 6. 1904.