1. Baptist, G.: 1990, ‘Ways and Loci of Modality. The Chapter “Actuality” in the Science of Logic Between its Absence in and its Disappearance in Berlin’, In G. de Giovanni (ed.), Hegel’s Science of Logic, State University of New York Press, Albany, pp. 123–138.
2. Bole, T.: 1973, ‘Hegel’s Science of Logic as a Transcendental Ontology’, unpublished doctoral dissertation, University of Texas.
3. Burbidge, J.: 1980, ‘The Necessity of Contingency: An Analysis of Hegel’s Chapter on “Actuality” in the Science of Logic’, in W. E. Steinkraus (ed.), Art and Logic in Hegel’s Philosophy, Humanities Pr., Atlantic Highlands, NJ, pp. 201–218.
4. Casey, E.S.: 1987, Remembering: A Phenomenological Study, Indiana University Press, Bloomington.
5. Casey, E. S.: 1990, ‘Moving ( Bodies) Between Places: Narrating the Journey’, unpublished manuscript.