共 3 条
[1]
EquipmentInvestmentandGrowthinDevelopingcountries. LutzH. JournalofDevelopmentEconomics . 2000
[2]
ResearchandDevelopmentoftheObject-orientedLifeCycleAssessment Database. XuJincheng,HaoWeichang,KouXinli,etal. MaterialsandDesign . 2001
[3]
LogicalFoundationsofMultilevelDatabases. FredericC,AlbanC. Data&KnowledgeEngineering . 1999