with Hinterberger, T. , 2013, 'The concept of complementarity and its role in quantum entanglement and generalized entanglement', Axiomathes 23 (3), 443-459.
, 2011, Hard problems in philosophy of mind and physics: do they point to spirituality as a solution?, in H. Walach, S. Schmidt & W. B. Jonas (eds.), Neuroscience, consciousness and spirituality, Dordrecht, Springer, pp. 109-118.
with Walach, H. , 2011, 'Generalised quantum theory—basic idea and general intuition: a background story and overview', Axiomathes 21 (2), 185-209.
with Walach, H. (eds) , 2011a, Axiomathes 21 (2).