共 16 条
[1]
*AM POD MED ASS, 1984, PROF POD MED 1984
[2]
Domencich T., 1975, URBAN TRAVEL DEMAND, P155
[3]
DUAN N, 1982, R2754 HHS RAND CORP
[5]
Griliches Z., 1976, J POLITICAL EC, V84, P69
[7]
LAZARUS W, 1981, COMPETITION HLTH PRA
[9]
LEE LF, 1982, REV EC STUDIES, V49, P357
[10]
MADDALA GS, 1983, LIMITED DEPENDENT QU