Dirige, A. P. E. -- Dirige, A. P. E., Archibald, J. F., Clarke, R., Hilkewich, T. and Frank, T., “The Effect of Different Mixing Techniques on the Strength Behavior of Paste Backfill”, the 42nd US Rock Mechanics Symposium and 2nd U.S.-Canada Rock Mechanics Symposium, held in San Francisco, June 29-July 2, 2008.

Dirige, A. P. E. -- Dirige, A. P. E. and De Souza, E., “Engineering Design of Backfill Systems in Adjacent Pillar Mining”, the 42nd US Rock Mechanics Symposium and 2nd U.S.-Canada Rock Mechanics Symposium, held in San Francisco, June 29-July 2, 2008.

Dirige, A. P. E. -- Dirige, A. P. E. and Archibald, J. F., “Use of Thin, Spray-On Linings for Structural Material Protection and Fire Damage Mitigation”, 41st Annual Symposium on Geological Engineering and Geotechnical Engineering Owyhee Plaza Hotel, Boise, Idaho, April 9 – 11, 2008.

Dirige, A.P.E. and E. De Souza, Engineering Design of Backfill Systems in Undercut Mining, Proceedings 9th International Symposium on Mining with Backfill, (MINEFILL 2007), Montreal, Quebec, April 29 – May 3, 2007. Selected by the MINEFILL2007 Technical Committee to be published in the August 2007 issue of CIM Magazine, Vol. 2, No. 5, p. 79, and August 2007 issue of CIM Bulletin (online journal), Vol. 100, No. 1103, 7 p.

Dirige, A.P.E., E. De Souza and J. F. Archibald, The Advantages of Centrifuge Modeling for Backfill Design, Proceedings 9th International Symposium on Mining with Backfill, (MINEFILL 2007), Montreal, Quebec, April 29 – May 3, 2007.