1. Co-ordinating European Council for the Development of Performance Tests for Lubricants and Engine Fuels Tentative Test Method CEC L-33-T-82;Biodegradability of Two-stroke Cycle Outboard Engine Oils in Water,1982
2. The Environmental Label Introduces Itself,1990
3. ICOMIA 27–92: Lubricating Oil for 2-Stroke Cycle Outboard Engines Ecologically Friendly,1992