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2. Åqvist, Lennart: 1974, ?A new approach to the logical theory of actions and causality?, in Sören Stenlund (ed.), Logical Theory and Semantics (Reidel, Dordrecht), pp. 73?91.
3. Baier, Annette: 1971, ?The search for basic actions?, American Philosophical Quarterly 8, pp. 161?170.
4. Bennett, Jonathan: 1973, ?Shooting, killing and dying?, Canadian Journal of Philosophy 11, pp. 315?322.
5. Berger, George: 1973, ?Temporally symmetric causal relations in Minkowski space-time?, in Patrick Suppes (ed.), Space, Time and Geometry (Reidel Dordrecht).