Partanen, T.J., Hogstedt, C., Ahasan, R., Aragón, A., Arroyave, M.E., Jeyaratnam, J., Kurppa, K., Loewenson, R., Lundberg, I., Ngowi, A.V., Mbakaya, C.F., Stayner, L., Steenland, K., Weiderpass, E., y Wesseling, C. (1999). Collaboration between developing and developed countries and between developing countries in occupational health research and surveillance. Scandinavian Journal of Work, Environment & Health, 25(3), 296–300.
https://www.jstor.org/stable/40966901