1. The Algebraic Topological Basis for Network Analogies and the Vector Calculus;Branin,1966
2. Diakoptics;Kron,1963
3. The Classification of Physical Variables in Network Theory and Mechanics with Applications to Variational Analysis, Physical Structure in Systems Theory;Jones,1974
4. Korn, J., Evans, F.J. and Holding, D.J., Thermodynamics and Field Theory as a Basis for Systems Dynamics, ibid, p. 167.
5. A Classification of Physical Variables and Its Application to Variational Methods;Jones;J. Frank. Inst.,1971