共 8 条
[1]
[Anonymous], 1976, EC REFUSE COLLECTION
[4]
LIEBMAN J, 1975, MATH MODELS GOVT PLA, P139
[5]
MARKS DH, 1970, PHS PUBL, V2065
[6]
WALKER W, 1974, RAND CORP PAPER, P5307
[7]
WARD JE, 1978, 9TH P ANN PITTSB C M, V9, P1305
[8]
1981, OECD EC INSTRUMENTS

