A formalism for the differentiation of conservation laws

Claude Bardos; Olivier Pironneau

Comptes Rendus. Mathématique, Volume 335 (2002) p. 839-845

Derivative with respect to discontinuities in the porosity

Christine Bernardi; Olivier Pironneau

Comptes Rendus. Mathématique, Volume 335 (2002) p. 661-666