1 Subjects: “...concept investigation...”

2 Subjects: “...self-concept...”

3 Subjects: “...search engine concept...”

4 “...The business model concept has gained a prominent position both in academia and among practitioners...”

5 “... in research and industrial application of smart manufacturing concepts....”

6 “... on the surgical concepts and techniques, decision-making processes, perioperative management protocols...”

7 “... of the management process of modern organizations, including the way people are managed. Trust is a subtle concept...”

8 “..., and resilience. This book features, firstly, the concepts digital triad (DT-II) and Internet of digital triad...”

9 “... studies. The reviews tend to be about the concepts and measures of these problems, intervention options...”