1. Influence of EP additive concentration on the tribological behaviour of DLC-coated steel surfaces
Bojan Podgornik, Staffan Jacobson, Sture Hogmark, 2004, original scientific article

Keywords: boundary lubrication, DLC coatings, extreme-pressure additives, friction
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3. Combination of DLC coatings and EP additives for improved tribological behaviour of boundary lubricated surfaces
Bojan Podgornik, Denis Hren, Jože Vižintin, Staffan Jacobson, N. Stavlid, Sture Hogmark, 2006, original scientific article

Keywords: DLC coating, boundary lubrication, friction, EP additive
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