Ackerman, J.R., "Inclined Planes of the Anthracite" in Proceedings of the 80th Annual Conference of the Pennsylvania Field Geologists, Pottsville, PA, October 9-10, 2015.

Aguiar, O., Stewart, R., Celebonovi, V., Artusox, G., Ackerman, J.R., Chatzitheodoridisk, A., Samadi, A., Aristizabal, C.I.O., Trentadue, W., Robinett, R., “The (Possible) Confirmation of the First Exo-Oceans” in SOCIEDADE OCEANOGRÁFICA, Mar/Apr/May, 2013

Stewart, R., Aguiar, O., Artuso, G., Aristizabal, C.I.O., Ackerman, J.R., Trentadue, W., Robinett, R., “Earth's Oceans; A Theoretical Approach How Interconnected Continents and High Mountain Glaciers Formed Them,” in INT’L JOURNAL OF GEOLOGY AND PALEONTOLOGY, October 3, 2012.

Stewart, R., Celebonovic, V., Aguiar, O., Chatzitheodoridis, E., Ackerman, J.R., Roman, M.S., Helfand, H.M., Artuso, G., Bingham, M., Trentadue, W., Samadi, A., Aristizabal, C.I.O., Robinett, R., Sudiro, P., Fraisse, R., Huguet, M., “First View of Gliese-581-d; A Preliminary Surface Survey,” in INT’L JOURNAL OF ASTRONOMY AND ASTROPHYSICS RESEARCH, August 24, 2012.

Ackerman, J.R., "Hydraulic Jett Mixing - Versatile Tool for Hazardous Waste Treatment," in Proceedings of Third International Conference on New Frontiers for Hazardous Waste Management.

Dempsey, B.A., and Ackerman, J.R., "Removal of Volatile Contaminants from Water by Aspiration Stripping," in Proceedings of the 1989 Annual Conference of the American Water Works Association, Los Angeles, CA.

Ackerman, J.R., "Mine Pumps - The Early Years," in Proceedings of the 59th Annual Conference of the Pennsylvania Field Geologists, Hazleton, PA, October 7-8, 1988.

Ackerman, J.R., "The Development and Use of the HYDRA Hydraulic Rake in the Treatment of Acid Mine and Process Water," in Proceedings of Anthracite Section AIME/Wilkes College Spring Technical Session, Wilkes-Barre, PA

Ackerman, J.R., "Fine Anthracite Coal and Refuse Classification Using the HYDRA Hydraulic Rake," in Proceedings of The Pennsylvania State University Advanced Coal Preparation Short Course, University Park, PA

Ackerman, J.R., "Pipeline Terminus Fine Coal Recovery and Water Clarification Using a Static Thickener," in Proceedings of 5th International Technical Conference on Slurry Transportation, Lake Tahoe, NV

Ackerman, J.R., "Recent Developments in Coal Classification with the HYDRA Hydraulic Rake Static Thickener," in Proceedings of The Pennsylvania State University Advanced Coal Preparation Short Course, University Park, PA

Ackerman, J.R., "Hydraulic Rake Handles Smelly Sludge." in POLLUTION ENGINEERING, Volume XVIII, Number 1 (1986)

Ackerman, J.R., "Biological Sludge Handling Using the HYDRA Hydraulic Rake," in Proceedings of Virginia Water Pollution Control Federation 39th Annual Conference, Fredericksburg, VA.