Ai. Murdoch et D. Bedeaux, CONTINUUM EQUATIONS OF BALANCE VIA WEIGHTED AVERAGES OF MICROSCOPIC QUANTITIES, Proceedings - Royal Society. Mathematical and physical sciences, 445(1923), 1994, pp. 157-179
Exact continuum forms of balance (for mass, momentum, and energy) are
established as relations between weighted space-time averages of molec
ular quantities computed at any supra-atomic length-time scales. The c
hoice of weighting function, and the physical interpretation of all te
rms, are discussed.