Wolpaw J, Kieffer VA, Seegal RF, Braitman DJ, Sanders MG. Adaptive plasticity in the spinal stretch reflex. Brain research [Internet]. 1983;267:196?200. http://www.ncbi.nlm.nih.gov/pubmed/6860948

Wolpaw J, Seegal RF. Diurnal rhythm in the spinal stretch reflex. Brain research [Internet]. 1982;244:365?369. http://www.ncbi.nlm.nih.gov/pubmed/6889452