Gackenbach, J. I., T. Witiw, M.-L. Ferguson, M. Darlington, C. Flockhart, D. Swanson, and S. Ahlswede. “‘Experts’ Versus Trained Dream Coders: Does It Make a Difference?”. International Journal of Dream Research, vol. 6, no. 2, Oct. 2013, pp. 132-5, doi:10.11588/ijodr.2013.2.10742.