, 2015, 'The actuality of Sartre's free will conception', Labyrinth 17 (2), 39-48.
, 1983, The significance of death for the experience of body and world in human existence, in A. Tymieniecka (ed.), Soul and body in Husserlian phenomenology, Dordrecht, Kluwer, pp. 283-294.
, 1969a, Die Bedeutung der Literatur für das existentielle Denken, in , Sektionen V-IX, Freiburg-Basel-Wien, Herder, pp. 262-265.