共 46 条
[1]
ANDRIKIS R, 1992, UNCED1992 ENV PROT D
[2]
*BELGIUM MIN VLAAM, 1991, GROEN HOOFDSTR VLAAN
[3]
BENNET G, 1991, EUROPEAN ECOLOGICAL
[4]
Bischoff N. T, 1993, DEV RURAL AREAS EURO
[5]
Boardman R., 1981, INT ORG CONSERVATION
[6]
BRANCO CC, 1994, CONTRIBUTOS REDE COR
[7]
BROEKE A, 1993, WATERCOURSE RESTORAT
[8]
Bucek A., 1992, P WORKSH EC STAB LAN, P26
[9]
*COUNC EUR, 1991, 460TH M MIN DEP STRA
[10]
*COUNC EUR, 1991, 2 NETW PROT AR COUNC