Cañas C., R, Quiroz, R.; León-Velarde, C.; Posadas, A. 2003. Energy harvesting cost. In: Proceedings of the IX World Conference on Animal Production, October 26-31, Porto Alegre, Brasil p. 38

Cañas, R., C. Leon-Velarde, R. Quiroz, J. Guerrero, J. Osorio, E. Murillo, D. Pezo 2003. Swine-production simulation model to predict body weight gain. In: Proceedings of the IX World Conference on Animal Production, October 26-31, Porto Alegre, Brasil p. 164

Cañas, R., R. Quiroz, C. León-Velarde, A. Posadas, and J. Osorio. 2003. Quantifying energy dissipation by grazing animals in harsh environments. J. Theoretical Biology Vol. 225 No. 03. pag. 351-359

Ji; Qiumei, R. Cañas, R. Quiroz, C. León-Velarde, and J. Guerrero. 2003. Yak simulation model to predict milk and animal body weight changes under Tibetan grazing conditions. In: Proceedings of the IX World Conference on Animal Production, October 26-31, Porto Alegre, Brasil p. 84

León-Velarde, C., R. Cañas, R. Quiroz, E. Murillo, J. Osorio, J. Guerrero, and D. Pezo. 2003. Computer simulation models to estimate milk and meat production from cattle and buffaloes under different bio-economic scenarios. . In: Proceedings of the IX World Conference on Animal Production, October 26-31, Porto Alegre, Brasil p.82

León-Velarde, C.U., Barrera, V.H. 2003. Métodos bio-matemáticos para el análisis de sistemas agropecuarios en el Ecuador. INIAP y CIP. Quito, Ecuador. P. 187

León-Velarde, Carlos U., and Roberto Quiroz.. 2003. The development of livestock production systems in the Andean region: Implications for smallholder producers. In: World Association for Animal Production (WAAP) Book of the year 2003. p. 233-240.

Posadas, A. N. D., D. Giménez, R. Quiroz, and R. Protz. 2003. Multifractal Characterization of Soil Pore Systems. Soil Science Soc. Am. Journal; Volume: 67; Issue: 5. p. 1361-1369

Quiroz, R. León-Velarde, C. Valdivia, R. Zorogastúa, P. Baigorria, G. Barreda, C. Reinoso, J. Holle, M. and Li Pun, H. 2003. Making a difference to andean livelihoods through an integrated research approach. CGIAR - Research Towards Integrated Natural Resources Management. R.R. Harwood & A.H. Kassam (Eds.). pag 111-122.

Quiroz, R., Ji Qiumei, P. Zorogastúa, C. León-Velarde, and R. Cañas. 2003. Assessing Dry Matter Availability in Tibetan Grasslands Using Ground-Level Remotely Sensed Data. In: Proceedings of the IX World Conference on Animal Production, October 26-31, Porto Alegre, Brasil p.125

Swinton, S., & Quiroz, R. 2003. Is Poverty to Blame for Soil, Pasture and Forest Degradation in Peru's Altiplano?. World Development Vol. 31 No. 11. pag 1903-1919.

Swinton, S., & Quiroz, R. 2003. Poverty and the deterioration of natural soil capital in the Peruvian Altiplano. Environment, Development and Sustainability Vol. 05. pag. 477-490.

Swinton, Scott, and Roberto Quiroz. 2003. Relaciones entre la Pobreza y el Deterioro Ambiental en la Cuenca del Lago Titicaca. In: G. Escobar (Ed) Pobreza y Deterioro Ambiental en América Latina. RIMISP, Santiago, Chile. p 39-60.

Valdivia, C. and Quiroz, R. 2003. Coping and adapting to increased climate variability in the Andes. Paper Prepared for presentation at the American Agricultural Economics Association Annual Meeting. Montreal, Canada.

Valdivia, C. J. L. Gilles, C. Jetté, R. Quiroz, R. Espejo. 2003. Coping and Adapting to Climate Variability: The Role of Assets, Networks, Knowledge and Institutions. In Insights and Tools for Adaptation: Learning from Climate Variability. 189-199. NOAA Office of Global Programs, Climate and Societal Interactions. Washington. DC.

Valdivia, C., Gilles, J. Quiroz, R. and C. Jetté. 2003. Final Report Climate Variability and Household Welfare in the Andes: Household Adaptation and Use of Forecasts. Submitted to NOAA Office of Global Programs, Climate and Societal Interactions. October 31. Washington DC.