<ref name=r4>{{cite journal|author=Cochin, S.|author2=Barthelemy, C.|author3=Roux, S.|author4=Martineau, J.|name-list-style=amp |year=1999|title= Observation and execution of movement: similarities demonstrated by quantified electroencephalography|journal= Eur J Neurosci|volume= 11|issue=5|pages= 1839–1842|doi=10.1046/j.1460-9568.1999.00598.x|pmid=10215938|s2cid=5825692|url=http://pdfs.semanticscholar.org/f021/aaa603c53818de888dabfdd7b06623a76adf.pdf}}</ref>
<ref name=r6>{{cite journal|author=Arroyo, S.|author2=Lesser, R. P.|author3=Gordon, B.|author4=Uematsu, S.|author5=Jackson, D.|author6=Webber, R.|name-list-style=amp |year=1993|title= Functional significance of the mu rhythm of human cortex: an electrophysiologic study with subdural electrodes|journal= Electroencephalography and Clinical Neurophysiology|url=https://www.sciencedirect.com/science/article/abs/pii/001346949390114B |volume=87|issue=3|pages=Abstrak|doi=10.1016/0013-4694(93)90114-B|pmid=7691544}}</ref>
<ref name=r7>{{cite journal|author=Pfurtscheller, G.|author2=Brunner, C.|author3=Schlogl, A.|author4=Lopes da Silva, F. H.|name-list-style=amp |year=2006|title= Mu rhythm (de)synchronization and EEG single-trial classification of different motor imagery tasks|url=http://www.cnel.ufl.edu/courses/EEL6935_BMI_2013/material/references/mu_rhythm.pdf|journal= NeuroImage|volume= 31|issue=1|pages= 153–159|doi=10.1016/j.neuroimage.2005.12.003|pmid=16443377|s2cid=21387597}}</ref>
