摘要
The author regrets for the following corrigendum of the reference.[5]Zifeng Li,Corrections and comments on the mathematical model presented in[Hosseinzadeh Ali and Bakhtiari-Nejad Firooz.A new dynamic model of coupled axial-torsional vibration of a drill string for investigation on the length increment effect on stick-slip instability.Journal of Vibration and Acoustics-Transactions of the ASME 2017;139(6):061016],Natural Gas Industry B.6(3)(2019)302e304.The author would like to apologise for any inconvenience caused by his previous remark.
