Bi-relative algebraic K-theory and topological cyclic homology, by Thomas Geisser and Lars Hesselholt: http://www.math.uiuc.edu/K-theory/0705
Excision for K-theory of connective ring spectra, by Bjorn Ian Dundas and Harald Oyen Kittang http://www.math.uiuc.edu/K-theory/0756
arXiv: Experimental full text search
KT (K-theory)
Birelative K-theory: http://front.math.ucdavis.edu/0111.5096
nLab page on Bi-relative algebraic K-theory