1. Garfield, E., 1965. Can citation indexing be automated. In: Paper Presented at the Statistical Association Methods for Mechanized Documentation, Symposium Proceedings.
2. Journal impact factor: a brief review;Garfield;Can. Med. Assoc. J.,1999
3. Co-citation analysis and the search for invisible colleges: a methodological evaluation;Gmür;Scientometrics,2003
4. Method in Your Madness: System in Your Safety. Valedictory Lecture;Hale,2006
5. Management and culture: the third age of safety. A review of approaches to organizational aspects of safety, health and environment;Hale;Occup. Injury Risk Prevent. Interv.,1998