1. Adams, E. W.: 1955,Axiomatic Foundations of Rigid Body Mechanics, unpublished Ph.D. Dissertation, Stanford Univ.
2. Adams, E. W.: 1959, ‘The foundations of rigid body mechanics and the derivation of its laws from those of particle mechanics’, in L. Henkinet al. (1959), pp. 250–265.
3. Balzer, W.: 1978a,Empirische Geometrie und Raum-Zeit-Theorie in mengentheoretischer Darstellung, Scriptor Verlag, Kronberg.
4. Balzer, W.: 1978b, ‘Die epistemologische Rolle des zweiten Newtonschen Axioms’,Philosophia Naturalis 17, 131–149.
5. Balzer, W.: 1978c, ‘A logical reconstruction of Pure Exchange Economics’, Typoscript, München.