共 18 条
[13]
LEECH D, 1987, J IND ECON, V3, P225
[14]
NIKAIDO H, 1979, INTRO SETS MAPPINGS
[15]
NYMAN S, 1978, OXFORD ECON PAP, V30, P74
[18]
Williamson O.E., 1975, MARKETS HIERARCHIES