Chyi, L.L., Liang, R.Y., 1999, Polishing and Friction Characteristics of Aggregates Produced in Ohio: Draft Report submitted to the Ohio Department of Transportation and The U.S. Department of Transportation, Federal Highway Administration, 250 p.

Chyi, L.L., 1998, Environmental quality vs. Economic Development: The Role of Coal in Developing Nations: Episodes, v. 21, no. 4, p. 280-281.

Chyi, L.L., 1997, Consulting and Engineering Services for a pilot Waste Tire Management Project: Report of Investigation to Ohio department of Natural Resources Division of Reclamation-Abandoned Mine Lands Program, Project ODNR St-PS-05-F, 122 p.

Chyi, L.L., 1997, Transformation from a Low-Sulfur Coal, the Harlem Coal of the Central Appalachian Basin: Inter. Jour. of Coal Geology, v.33, p. 317-331.

Chyi, L.L., Medlin, J.S., and Coleman, L.S., 1996, Preface: Intern. Jour. of Coal Geology, Sp. Issue on Coalification and Coal Petrology, v. 30, p. 275.

Chyi, L.L. and Medlin, J.S., 1996, Characterizing coal beds with geochemical coherent Triad: Intern. Jour. of Coal Geology, Sp. Issue on Coalification and Coal Petrology, v. 30, p. 349-359.

Chyi, L.L., Zhan, M.G., and Rhao, J.G., 1996, Late Triassic - Cretaceous basin and range structure and its control on mineralization of Cu, Pb, Zn, Au, Ag ore deposits in Southern China: Acta Geoscientia Sinica, Sp. Issue dedicated to the 30th International Geological Congess, p. 54-59.

Chyi, L.L. and Quick, T.J., 1995, Gas Removal Apparatus: Patent, U.S. Patent and Trademark Office, Patent No. 5,438,324.

Chyi, L.L. and Runyon, C.V., 1992, Assessment of clean coal technology: in H. Wang, and S.L. Chang (eds) Energy, environment, and information management, Argonne National Lab., p. 1/27-2/33.

Chyi, L.L. and Carter, C.H., 1992, Mineral industries: in R.B. Kent (ed), Region in transition: an economic and social atlas of North East Ohio, University of Akron Press, p. 158-165.

Chyi, L.L. and Chou, C.L., 1990, (eds) Recent advances in coal geochemistry: GSA Special Paper 248, v-vi.