1. The false fontanelle as a practical method of long-term testing of intracranial pressure;Forrest;Developmental Medicine and Child Neurology,1968
2. Hakim , S. Venegas , J. G. 1973 The mechanics of hydrocephalus and the physical specification for the ideal treatment Paper read at the 26th Annual Conference on Engineering in Medicine and Biology, Minneapolis, September , 1973
3. Valvula con servomecanismo para el tratamiento de la hidrocephalia. (Un neuvo enfoque para los sistemas de derivación.);Hakim;Tribuna Medica (Bogotá),1973a
4. A critical analysis of valve shunts used in the treatment of hydrocephalus;Hakim;Developmental Medicine and Child Neurology,1973b