Gutierrez, S., Floréz, D., Amaya, C. A., Velasco, N.. Optimización del servicio de lavandería en un hospital público de Bogotá D.C.. XIII Escuela Lationamericana de Verano en Investigación de Operaciones, 2008. Lima-Perú , Febrero 2008

Velasco, N., Dejax, P., Gueret, C.. Vehicle Routing Optimization for the Pick-up and Delivery: Application to the transport of personnel on oil platforms. European Conference on Operational Research EUROXX. Rodas – Grecia, Julio 2004

Sefair, J. A., Medaglia, A. L. and Cohen, M.-d. Optimal scoring method: an approximation to ranking with multiple criteria. IIE Annual Conference and Expo, Vancouver, Canada, 2008.

Sefair, J. A., Mendez, C. Y. and Medaglia, A. L.. Mean-semivariance model for project selection: An illustrative example in the oil and gas industry. IIE Annual Conference and Expo, Vancouver, Canada, 2008.

Vargas, M. A., Sefair, J. A., Walteros, J. L., Medaglia, A. L. and Rivera, L. An optimization approach to car pooling: an application in Strasbourg (France). IIE Annual Conference and Expo, Vancouver, Canada, 2008.

Medaglia, A. L., Mendoza, J., Prins, C., Velasco, N. and Villegas, J. G. A split-based evolutionary framework for vehicle routing. IIE Annual Conference and Expo, Vancouver, Canada, 2008.

Molano, A. M., Medaglia, A. L. and Sarmiento, O. L. Integrating GIS with location models for siting urban parks. IIE Annual Conference and Expo, Vancouver, Canada, 2008.

Castro-Lacouture, D., Sefair, J., Florez, L., Medaglia, A. L.. Optimization model for the selection of materials using a LEED-based green building rating system in Colombia. Think Green Week. Brook Byers Institute for Sustainable Systems (ISS). Sustainability Poster Session. Georgia Institute of Technology. Atlanta, April 16, 2008.

Sefair, J. A. and Medaglia, A. L. Modelos de selección y ordenamiento de proyectos de inversión. Plenaria en el Seminario Nacional: Optimización de la Cadena de Valor. UIS, Bucaramanga, Colombia, 2007.

Mendoza, J. E., Medaglia, A. L. and Velasco, N.. Design and implementation of a decision support system for vehicle routing in a public utility. IIE Annual Conference and Expo, Nashville, U.S.A., 2007.