Retraction notices

A Case for Hierarchical Databases

Type
Retraction
Notice date
4/1/2020 0:00
Journal
Proceedings of the 2015 International Conference on Education Technology, Management and Humanities Science
Publisher
Springer - Nature Publishing Group
Notice DOI
10.2991/etmhs-15.2015.217
Original paper DOI
10.2991/etmhs-15.2015.217

Reasons