Table 5: Selected libraries and initially retrieved results.
No | Database Name | Web address | No of Initially Retrieved |
1 | ACM Digital Library | http://dl.acm.org/ | 40 |
2 | ScienceDirect | http://www.sciencedirect.com/ | 76 |
3 | Scopus | https://www.scopus.com/ | 433 |
4 | IEEE Xplore | http://ieeexplore.ieee.org/ | 105 |
5 | Web of Science | https://webofknowledge.com/ | 209 |
Total Number of papers | 863 |