1. Altbach, P. G. (2004). The United States: Present, realties, and future trends. In J. Sadlak (Ed.), Doctoral studies and qualifications in Europe and the United States: Status and prospects (pp. 259–278). Dordrecht: UNESCO.
2. Andres, L., Bengtsen, S. S., Castano, L. P. G., Crossouard, B., Keefer, F. M., & Pyhalto, K. (2015). Drivers and interpretations of doctoral education today: National comparisons. Frontline Learning Research, 3(3), 5–22.
3. Arimoto, A. (2018). Doctoral education in Japan: Historical development and challenges. In J. C. Shin, B. M. Kehm & G. A. Jones (Eds.), Doctoral education for the knowledge society: Convergence or divergence in national approaches? (Forthcoming).
4. Austin, A. E. (2002). Preparing the next generation of faculty: Graduate school as socialization to the academic career. Journal of Higher Education, 73(1), 94–122.
5. Austin, A. E. (2010). Reform efforts in STEM doctoral education: Strengthening preparation for scholarly careers. In J. C. Smart (Ed.), Higher education: Handbook of theory and research 25, (pp. 91–128). New York: Springer.