, 2013, The truth in Heidegger: An analysis of Martin Heidegger's philosophy of art as it appears in the Ursprung des Kunstwerkes from the perspective of Sein und Zeit, in A. Tymieniecka (ed.), Phenomenology and the human positioning in the cosmos II, Dordrecht, Springer, pp. 155-165.
, 2012, The religious belief in rationality, science and democracy, in S. Andersen øyen, T. Lund Olsen & N. Sørensen Vaage (eds.), Sacred science?, Wageningen, Wageningen Academic Publishers, pp. 65-74.
with Sørensen Vaage, N. , Lund Olsen, T. , 2012, Scientific worldviews, religious minds, in S. Andersen øyen, T. Lund Olsen & N. Sørensen Vaage (eds.), Sacred science?, Wageningen, Wageningen Academic Publishers, pp. 17-24.
with Lund Olsen, T. , Sørensen Vaage, N. (eds) , 2012, Sacred science?: on science and its interrelations with religious worldviews, Wageningen Academic Publishers, Wageningen.
, 2011a, The existentialistic subject today, in A. Tymieniecka (ed.), Phenomenology/ontopoiesis retrieving geo-cosmic horizons of antiquity, Dordrecht, Springer, pp. 61-74.
, 2011b, The paradoxes of moral in Jean-Paul Sartre's philosophy, in A. Tymieniecka (ed.), Transcendentalism overturned, Dordrecht, Springer, pp. 169-181.