Domhoff, G. W. (2002). The scientific study of dreams: Neural networks, cognitive development, and content analysis. Washington, DC: APA Press.
Xie, L., Hongyi, K., Qiwu, X., Chen, M. J., Yonghong, L., Meenakshisundaram, T. … Nedergaard, M. (2013). Sleep drives metabolite clearance from the adult brain. Science, 342(6156), 373–377.
