sentences:  It was not until nearly one hundred years later that Johnson, Kendall, and Roberts found a similar solution for the case of adhesive contact.This theory was rejected by Boris Derjaguin and co-workers who proposed a different theory of adhesion in the 1970s.The Derjaguin model came to be known as the DMT (after Derjaguin, Muller and Toporov) model, and the Johnson et al.