Grand challenges in altmetrics: heterogeneity, data quality and dependencies
The open access advantage considering citation, article usage and social media attention
User participation in an academic social networking service: A survey of open group users on Mendeley
Mobile learning in resource-constrained environments: a case study of medical education.
Alternative metrics in scientometrics: a meta-analysis of research into three altmetrics
A Qualitative Approach to Assessing Technological Pedagogical Content Knowledge