【作者(必填)】Sven Illeris et al

【文题(必填)】Producer services: the key sector for future economic development?
THE GEOGRAPHIES OF PRODUCER SERVICES
Producer Services Research in U.S. Regional Studies

【年份(必填)】1989
2000
1995
【全文链接或数据库名称(选填)】http://www.tandfonline.com/doi/abs/10.1080/08985628900000023
http://bellwether.metapress.com/content/6l5503816x022qx8/
http://www.tandfonline.com/doi/abs/10.1111/j.0033-0124.1995.00087.x