- RePEc:ces:ceswps:_1394
- RePEc:ces:ceswps:_1407
- RePEc:cla:levrem:666156000000000488
- RePEc:dgr:eureri:30001455
- RePEc:dgr:kubcen:200504
- RePEc:dgr:kubcen:200507
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- RePEc:dgr:kubcen:200523
- RePEc:dgr:umamer:2005004
- RePEc:ebg:essewp:dr-05002
- RePEc:fmg:fmgsps:sp158
- RePEc:geo:guwopa:gueconwpa~05-05-08
- RePEc:hst:hstdps:d04-55
- RePEc:hst:hstdps:d04-72
- RePEc:isu:genres:12251
- RePEc:mrr:papers:wp075
- RePEc:mrr:papers:wp082
- RePEc:nbr:nberwo:11116
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- RePEc:rea:inrawp:200417
- RePEc:uta:papers:2005_01