The assignment game introduced by Shapley and Shubik (1972)  is a model for a two-sided market where there is an exchange of indivisible goods for money and buyers or sellers demand or supply exactly one unit of the goods. We give a procedure to compute the nucleolus of any assignment game, based on the distribution of equal amounts to the agents, until the game is reduced to fewer agents.
Martínez, J.; Rafels, C.; Ybern, M. A procedure to compute the nucleolus of the assignment game. "Operations research letters", Novembre 2013, vol. 41, núm. 6, p. 675-678.