For a detailed account of the Goiânia accident, the report of the International
Atomic Energy Agency can be found at:
http://www-pub.iaea.org/mtcd/publications/pdf/pub815_web.pdf

A summary of the event with translations from stories in local Portuguese
language newspapers is here:
http://en.wikipedia.org/wiki/Goiania

The medical paper written by Bob and his colleagues is at:
“Use of Recombinant Granulocyte-Macrophage Colony Stimulating Factor in the Brazil Radiation Accident,” The Lancet, August 27, 1988. An abstract can be found at:
http://www.ncbi.nlm.nih.gov/pubmed/2900402