TY - RPRT TI - The cross-correlation and phase-difference methods are not equivalent under noninvasive estimation of the motor unit propagation velocity. AU - T I Arabadzhiev AU - G V Dimitrov AU - N A Dimitrova PY - 2004 DO - 10.1016/j.jelekin.2004.01.001 UR - https://pubmed.ncbi.nlm.nih.gov/15094143/ ID - 15094143 ER -