Gramatik e Diksionar
The grammar and dictionary were originally published by Waldemar Rosenberger in German in 1902 and translated into English by M. A. F. Holmes in 1903.
Suplement a Diksionar
This supplement was published in German in 1906 by Waldemar Rosenberger and seeks to expand the vocabulary of the dictionary by including new and proposed terms (chiefly scientific and geographical). Side-by-side German and English translation.
Letri historik
The letters in this collection (1904-1911) are written in Idiom Neutral and come from the archive of Giuseppe Peano, who became director of the Academy after M. A. F. Holmes. For the most part, they are written by Waldemar Rosenberger and mainly concern the Academy’s affairs and linguistic questions about future evolution of the Academy’s language.
Progres
Progres (1906-1908) was the first journal written entirely in Idiom Neutral.