Schuman, Erin M. Synaptic Plasticity Department, Max Planck Institute for Brain Research, Max Planck Society;
https://www.ncbi.nlm.nih.gov/pubmed/19351951 (Any fulltext)
Sutton, M. A., & Schuman, E. M. (2009). Partitioning the synaptic landscape: distinct microdomains for spontaneous and spike-triggered neurotransmission. Sci Sign, 2(65), pe19.