1. The system of inequalities ars≥Xr−Xs;Afriat;Math. Proc. Camb. Philos. Soc.,1963
2. Lecture notes on optimal transport problems;Ambrosio,2003
3. A user's guide to optimal transport;Ambrosio,2013
4. Cyclical monotonicity and the ergodic theorem;Beiglböck;Ergod. Theory Dyn. Syst.,2015
5. Relaxed energies for harmonic maps;Bethuel,1990