Boundary lubrication of oxide surfaces by Poly(L-lysine)-g-poly(ethylene glycol) (PLL-g-PEG) in aqueous media - Lee, S; Müller, M; Ratoi-Salagean, M; Vörös, J; Pasche, S; De, Paul SM; Spikes, HA; Textor, M; Spencer, ND (TRIBOLOGY LETTERS, 2003)