Franchi, Bruno: $BV$ spaces and rectifiability for Carnot-Carathéodory metrics: an introduction.
(English).
In:
Opic, Bohumír
and Rákosník, Jiří (eds.): Nonlinear Analysis, Function Spaces and Applications, Proceedings of the Spring School held in Prague, July 17-22, 2002.
Vol. 7.
Czech Academy of Sciences, Mathematical Institute, Praha, 2003.
pp. 73-132