TY - RPRT TI - Measurement errors in modified pull-ups testing. AU - J A Kollath AU - M J Safrit AU - W Zhu AU - L G Gao PY - 1991 DO - 10.1080/02701367.1991.10607545 UR - https://pubmed.ncbi.nlm.nih.gov/1780567/ ID - 1780567 ER -