Phiên bản trực tuyến
 Wittgenstein: Gesamtbriefwechsel/Complete Correspondence. Innsbrucker Electronic Edition: Ludwig Wittgenstein: Gesamtbriefwechsel/Complete Correspondence contains Wittgenstein's collected correspondence, edited under the auspices of the Brenner-Archiv's Research Institute (University of Innsbruck). Editors (first edition): Monika Seekircher, Brian McGuinness and Anton Unterkircher. Editors (second edition): Anna Coda, Gabriel Citron, Barbara Halder, Allan Janik, Ulrich Lobis, Kerstin Mayr, Brian McGuinness, Michael Schorner, Monika Seekircher and Joseph Wang.
 Wittgensteins Nachlass. The Bergen Electronic Edition: The collection includes all of Wittgenstein's unpublished manuscripts, typescripts, dictations, and most of his notebooks. The Nachlass was catalogued by G. H. von Wright in his "The Wittgenstein Papers", first published in 1969, and later updated and included as a chapter with the same title in his book Wittgenstein, published by Blackwell (and by the University of Minnesota Press in the U.S.) in 1982.
 Review of P. Coffey's Science of Logic (1913): a polemical book review, written in 1912 for the March 1913 issue of The Cambridge Review when Wittgenstein was an undergraduate studying with Russell. The review is the earliest public record of Wittgenstein's philosophical views.
 Nachlass online