E. Caputo, N. Cavallucci: Sobolev spaces via chains in metric measure spaces (Preprint) p. 49, 2024 E. Caputo, N. Cavallucci: Poincaré inequality and energy of separating sets Advances in Calculus of Variations (Accepted Paper) 2024 E. Caputo, N. Cavallucci: A geometric approach to Poincaré inequality and Minkowski content of separating sets Int. Math. Res. Not. 2024