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