1. Carlo Ierna, Hanne Jacobs, Filip Mattens (Eds.) Philosophy, Phenomenology, Sciences: Essays in Commemoration of Edmund HusserlPhaenomenologica 200 (Dordrecht: Springer, 2010).


  1. “On Ehrenfels’ Dissertation” in Meinong Studies 8: Christian von Ehrenfels: Philosophie – Gestalttheorie – Kunst, ed. by Ulf Höfer and Jutta Valent (Forthcoming: October 2017).
  2. Christian von Ehrenfels “Größenrelationen und Zahlen. Eine psychologische Studie”, and five letters from Ehrenfels to Meinong, ed. C. Ierna, in Meinong Studies 8 (Forthcoming: October 2017).
  3. “Die Gestalten und das Gestalten der Welt” in Meinong Studies 8 (Forthcoming: October 2017).
  4. “Improper Intentions of Ambiguous Objects: Sketching a New Approach to Brentano’s Intentionality” in Brentano Studien XIII (2015), pp. 55–80.
    [Download the final draft accepted for publication: Ierna – Improper Intentions of ambiguous objects (PDF)].
  5. (with Robin Rollinger) “Christian von Ehrenfels”, Stanford Encyclopedia of Philosophy (2015).
  6. “A Letter from Edmund Husserl to Franz Brentano from 29 XII 1889” in Husserl-Studies, 31:1 (2015), pp. 65-72.
    [Read Husserl’s letter to Brentano and my translation]
  7. “Husserl’s Philosophy of Arithmetic in Reviews” in The New Yearbook for Phenomenology and Phenomenological Philosophy, Vol. XII (2012), 2013.
  8. Brentano and the Theory of Signs” in Paradigmi. Rivista di Critica Filosofica, n. 2 (2012), pp. 11-22.
  9. Husserl’s Psychology of Arithmetic” in Bulletin d’analyse Phénoménologique, Volume 8 (2012)  Numéro 1: Le problème de la passivité (Actes n°5)
  10. La notion husserlienne de multiplicité : au-delà de Cantor et Riemann” in Methodos, 12, mis en ligne le 10 avril 2012.
  11. Der Durchgang durch das Unmögliche. An Unpublished Manuscript from the Husserl-Archives” in Husserl-Studies, Volume 27, Number 3, (2011), pp. 217-226.
    [Read Husserl’s text and my translation]
  12. “Brentano and Mathematics” in Revue Roumaine de Philosophie 55/1 (2011), pp. 149-167.
  13. “Husserl et Stumpf sur la Gestalt et la fusion” in Philosophiques 36/2 (2009), pp. 489-510.
  14. “Anton Marty and the Phenomenological Movement” in Brentano Studien XII (2009), pp. 219-240.
  15. “Relations in the early works of Meinong and Husserl” in Meinong Studies / Meinong Studien III (2009), pp. 7-36
  16. “The Beginnings of Husserl’s Philosophy (Part 2: Philosophical and Mathematical Background)” in The New Yearbook for Phenomenology and Phenomenological Philosophy Vol. VI (2006), pp. 23-71
  17. “The Beginnings of Husserl’s Philosophy (Part 1: From Über den Begriff der Zahl to Philosophie der Arithmetik)” in The New Yearbook for Phenomenology and Phenomenological Philosophy Vol. V, (2005), pp. 1-56
  18. Edmund Husserl “Vorlesung Über den Begriff der Zahl (WS 1889/90)”, ed. C. Ierna, in The New Yearbook Vol. V (2005).
  19. Edmund Husserl “Lecture on the Concept of Number (WS 1889/90)”, tr. C. Ierna, in The New Yearbook. Vol. V (2005).
  20. Essay-review of The Cambridge Companion to Brentano in History and Philosophy of Logic 26(1), February 2005, pp. 61-64.
  21. “Husserl and the Infinite” in Studia Phaenomenologica: “The School of Brentano and Husserlian Phenomenology” Vol.III, No. 1-2/2003, pp. 179-194.

Contributions to books

  1. The Brentanist Philosophy of Mathematics in Edmund Husserl’s Early Works” in Essays on Husserl’s Logic and Philosophy of Mathematics, ed. Stefania Centrone, Synthese Library 384 (Berlin: Springer, 2017), pp. 147-168
  2. Einflüsse auf Husserl” in Husserl-Handbuch: Leben – Werk – Wirkung, eds. Sebastian Luft & Maren Wehrle (Berlin: Springer, 2017), pp. 22-32.
  3. “The Reception of Russell’s Paradox in Early Phenomenology and the School of Brentano: The Case of Husserl’s Manuscript A I 35α” in Husserl and Analytic Philosophy, ed. Guillermo E. Rosado Haddock (De Gruyter, 2016), pp. 119-141.
  4. Edmund Husserl “Manuscript A I 35α”, eds. Carlo Ierna & Dieter Lohmar, in Husserl and Analytic Philosophy, ed. Guillermo E. Rosado Haddock (De Gruyter, 2016), pp. 289-319.
  5. “Carl Stumpf’s Philosophy of Mathematics” in Philosophy from an Empirical Standpoint: Essays on Carl Stumpf, edited by Denis Fisette and Riccardo Martinelli (Amsterdam: Rodopi, 2015).
  6. “Making the Humanities Scientific: Brentano’s Project of Philosophy as Science” in The Making of the Humanities. Volume III: The Making of the Modern Humanities, edited by Rens Bod, Jaap Maat and Thijs Weststeijn (Amsterdam: Amsterdam University Press, 2014), pp. 543-554.
    [Download the entire Open Access book as PDF]
  7. La science de la conscience selon Brentano”, in Vers une philosophie scientifique. Le programme de Brentano, edited by Charles-Edouard Niveleau (Paris: Démopolis, 2014), pp. 51-69.
  8. “Brentano and Mathematics” in Franz Brentano’s Metaphysics and Psychology, edited by Ion Tanasescu (Bucharest: Zeta Books, 2012), pp. 368-396.
  9. “Mathematik” in the Husserl Lexikon, edited by Hans-Helmuth Gander, Wissenschaftliche Buchgesellschaft, Darmstadt, 2010, pp. 195-197
  10. “Husserl’s Critique of Double Judgments” in Filip Mattens, ed., Meaning and Language: Phenomenological Perspectives, Phaenomenologica 187, Springer, Dordrecht/Boston/London, 2008.
  11. “De methode van de fenomenologie” in Peter Reynaert, ed., Husserl. Een inleiding, Pelckmans/Klement, Kapellen/Kampen, 2006, pp. 12-31.


  1. Review of Burt Hopkins The Origin of the Logic of Symbolic Mathematics. Edmund Husserl and Jacob Klein, in Philosophia Mathematica (2014), 22 (2), 249-262.
  2. Review of Stefania Centrone Logic and Philosophy of Mathematics in the Early Husserl, in Husserl-Studies 29:3, pp. 251–253 (2013).
  3. Review of Mirja Hartimo (Ed.) Phenomenology & Mathematics, in History and Philosophy of Logic 32/4, pp. 399-400 (Nov. 2011).
  4. Review of “Edmund Husserl Philosophy of Arithmetic (tr. D. Willard)” in Husserl-Studies 24:1, April 2008, p. 53-58.
  5. Review of “Richard Tieszen Phenomenology, Logic, and the Philosophy of Mathematics” in History and Philosophy of Logic28(2), May 2007, pp. 173-174.

Non-refereed Articles

  1. “Sigwarts Zahlbegriff” (Ausgangsstellungnahme/Zehnte Diskussionseinheit) in Erwägen Wissen Ethik, vol. 19/4 (2008), pp. 569-570
  2. “Sigwart’s Numbers in Context” (Erweiterte Stellungnahme/Zehnte Diskussionseinheit) in Erwägen Wissen Ethik, vol. 19/4 (2008), pp. 585-587
  3. “Concluding Remarks” (Abschließende Stellungnahme/Zehnte Diskussionseinheit) in Erwägen Wissen Ethik, vol. 19/4 (2008), pp. 600-602

Work in Progress:

My book on The Beginnings of Husserl’s Philosophy for Phenomenology & Mind (De Gruyter) is nearly completed.

A contribution on “Christian von Ehrenfels on the Mind and its Metaphysics” is forthcoming in volume 5 History of Philosophy of Mind in the 19th Century (ed. Sandra Lapointe) of the History of Philosophy of Mind (Routledge, 2017).

A contribution on Herbert Spiegelberg as well as a translation of an article on Spiegelberg by Karl Schuhmann (together with Robin Rollinger) have been submitted for the volume edited by Michela Ferri on The Reception of Husserlian Phenomenology in North America, contracted for Springer’s Contributions to Phenomenology series (projected for 2017).

I will be editing one of the volumes of Anton Marty’s Complete Works for sdvig press.


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