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Search Symbol (Half-width) Description of Search Symbols
Space "AND" indicates the intertwining of key terms used in a search
Double Quotation Marks ("") ( " " ) Double quotation marks indicate the beginning and end of a phrase, and the search will only include terms that appear in the same order of those within the quotations. Example: "image process" : " image process "
? Indicates a variable letter. Entering two ? will indicate two variable letters, and so on. Example: "Appl?", search results will yield apple, apply… e , appl y … ( (often used to English word searches) )
* Indicates an unlimited number of variable letters to follow, from 1~n. Example: Enter "appl*", search results will yield apple, apples, apply, applied, application…(often used in English word searches) e , appl es , appl y , appl ied , appl ication … ( (often used to English word searches) )

Boolean logic combinations of key words is a skill used to expand or refine search parameters.
(1) AND (1) AND: Refines search parameters
(2) OR (2) OR: Expands search parameters (3) NOT: Excludes irrelevant parameters


DOI stands for Digital Object Identifier ( D igital O bject I dentifier ) ,
and is the unique identifier for objects on the internet. It can be used to create persistent link and to cite articles.

Using DOI as a persistent link

To create a persistent link, add「」 「 」 before a DOI.
For instance, if the DOI of an article is 10.5297/ser.1201.002 , you can link persistently to the article by entering the following link in your browser: 10.5297/ser.1201.002
The DOI link will always direct you to the most updated article page no matter how the publisher changes the document's position, avoiding errors when engaging in important research.

Cite a document with DOI

When citing references, you should also cite the DOI if the article has one. If your citation guideline does not include DOIs, you may cite the DOI link.

DOIs allow accurate citations, improve academic contents connections, and allow users to gain better experience across different platforms. Currently, there are more than 70 million DOIs registered for academic contents. If you want to understand more about DOI, please visit airiti DOI ) 。

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Reference ( 63 ) 〈TOP〉
  1. 金家禾,2001,全球化與台灣都會區生產者服務業之發展,都市與計劃,第28卷,第四期,第495-518頁。
  2. 姜樹翰,2008,知識外溢與都市製造業成長,台灣土地研究,第十一卷,第一期,第37-62頁。
  3. 陳冠位、林素穗、黃若男,2003,台灣城市生產者服務業空間群聚之量測,建築與規劃學報,第四卷,第一期,第23-38頁。
  4. Audretsch, D.B. and Vivarelli, M., 1996, Firms size and R&D spillovers: Evidence from Italy, Small Business Economics, 8(3):249-258.
  5. Amin, A. and Thift, N., 1992, Neo-Marshallian Nodes in Global Networks, International Journal of Urban and Regional Research,16(4):571-587.
Times Cited (1) 〈TOP〉
  1. 劉訓華(2012)。產業聚集與廠商生產力之關係:以台灣電子產業為例。臺灣大學經濟學研究所學位論文。2012。1-69。 
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