Womersley, J.R. (March 1955). "Method for the calculation of velocity, rate of flow and viscous drag in arteries when the pressure gradient is known". J. Physiol. 127 (3). ss. 553-563. doi:10.1113/jphysiol.1955.sp005276. PMC1365740 $2. PMID14368548.
Womersley, J.R. (March 1955). "Method for the calculation of velocity, rate of flow and viscous drag in arteries when the pressure gradient is known". J. Physiol. 127 (3). ss. 553-563. doi:10.1113/jphysiol.1955.sp005276. PMC1365740 $2. PMID14368548.