1. Aumann RJ, Maschler M (1964) The bargaining set for cooperative games. Ann Math Studies 52:443–476
2. Davis M, Maschler M (1965) The kernel of a cooperative game. Naval Res Logist Q 12:223–259
3. Driessen TSH (1983) Cores ofK-convexn-person games with an increasing gap function. Report 8348. Department of Mathematics, Catholic University, Nijmegen, The Netherlands
4. Driessen TSH, Tijs SH (1982) Semiconvex games and the τ-value. Report 8228. Department of Mathematics, Catholic University, Nijmegen, The Netherlands. (To appear in Int J Game Theory)
5. Driessen TSH, Tijs SH (1983) The τ-value, the nucleolus and the core for a subclass of games. Methods Oper Res 46: 395–406