H. Speidel

Biodegradability of new engineered fuels compared to conventional petroleum fuels and alternative fuels in current use.

H. Speidel, R. Lightner, I. Ahmed, 2000, Applied biochemistry and biotechnology.

Conversion of deteriorated metal cutting fluids into protein

H. Speidel, E. Bennett, Harold K. Speidel, 1972 .

Biodegradability Characteristics of Current and Newly-Developed Alternative Fuels

Irshad Ahmed, H. Speidel, I. Ahmed, 1999 .

Diffusion through a Double-Sided Plate: Development of a Method to Study Alga-Bacterium Interactions

H. Speidel, F. Colwell, 1985, Applied and environmental microbiology.

Oxidation-Resistance and Some Phase Relationships in the System Chromium- Tantalum-Nickel

H. Speidel, O. Kubaschewski, 1949 .