Objects moving at a constant velocity experience zero net force according to Newton's first and second laws, meaning the applied force exactly balances the kinetic friction. No citation is needed for this fundamental principle of classical mechanics.
The claim represents a direct, textbook application of Newton's laws of motion (specifically equilibrium dynamics for constant velocity), which constitutes common knowledge in physics. The retrieved papers discuss unrelated topics such as nanoscale friction microscopy, plant neurobiology, and machine learning ethics, none of which are required to validate this basic physical definition.