Purves, Dale; Augustine, George J.; Fitzpatrick, David; Katz, Lawrence C.; LaMantia, Anthony-Samuel; McNamara, James O.; Williams, S. Mark (2001). "Increased Conduction Velocity as a Result of Myelination". Neuroscience. 2nd edition. Sunderland, MA.{{cite book}}: CS1 maint: location missing publisher (link)