Table 2.

Queries by digital library for real-time related open (government) data studies.

Title 1	Title 2
ACM Digital Library	Title: ((“open data” OR “open government data” OR “OGD”)) AND Title: ((“real time” OR “realtime” OR “real-time”)) OR Abstract: ((“open data” OR “open government data” OR “OGD”)) AND Abstract: ((“real time” OR “realtime” OR “real-time”))
IEEE Xplore	(“Abstract”:”open data” OR “Abstract”:”OGD” OR “Abstract”:”open government data”) AND (“Abstract”:”real time” OR “Abstract”:”realtime” OR “Abstract”:”real-time”) OR (“Publication Title”:”open data” OR “Publication Title”:”OGD” OR “Publication Title”:”open government data”) AND (“Publication Title”:”index” OR “Publication Title”:”real time” OR “Publication Title”:”realtime” OR “Publication Title”:”real-time”)
Science Direct	(“open data” OR “open government data” OR “OGD”) AND (“real time” OR “realtime” OR “real-time”) in “Title, abstract or author-specified keywords”
Emerald Insight	title:”(open data OR open government data OR OGD) AND (real time OR realtime OR real-time)” OR (abstract:”(open data OR open government data OR OGD) AND (real time OR realtime OR real-time)”)