%0 Journal Article %T Precombustion Chamber NOx Emission Contribution to an Industrial Natural Gas Engine %A Gingrich, J W %A Olsen, D B %A Puzinauskas, P %A Willson, B D %J International Journal of Engine Research %V 7 %N 1 %P 41-49 %@ 1468-0874 %D 2006-02-01 %I SAGE Publications %~ DeepDyve