1. Field, S., Nirula, S.C., McCarty, J.G., Report from SRI International, No. 69129-01-SQ, 1987.
2. Synthesis of ethylene via oxidative coupling of methane I. Determination of active catalysts
3. The direct conversion of methane to methanol by controlled oxidation
4. Methane Conversion;Taylor,1988
5. Audeh, C.A., Bell, W.K., Han, S., Palermo, R.E., US Pat. 4,822,938 4,864,073 4,864,074 (1989) assigned to Mobil Oil Corporation.