共 8 条
[3]
LISCO TE, 1967, THESIS U CHICAGO
[5]
QUARMBY DA, 1967, J TRANSP ECON POLICY, V1, P273
[6]
STOPHER PR, 1969, HIGHWAY RES REC, P57
[7]
STOPHER PR, 1970, P TRANSPORTATION RES
[8]
WATSON PL, 1974, VALUE TIME BEHAVIORA