1. Trends in global higher education: Tracking an academic revolution;Altbach,2009
2. Invisible colleges: Diffusion of knowledge in scientific communities;Crane,1972
3. Dynamic issues in nursing: The impact of the economic recession on nurses and nursing in Iceland [developed by Elsa B. Friðfinnsdóttir and Jón Aðalbjörn Jónsson];International Council of Nurses,2010
4. Nurses survey: Patients pay the price for insufficient staff, high workloads;International Council of Nurses & Pfizer,2009