1. Private acts and public objectives: An investigation of citer motivations;Brooks;Journal of the American Society for Information Science,1985
2. National bias: A comparison of citation practices by health professionals;Campbell;Bulletin of the Medical Library Association,1990
3. The international distribution of biomedical publications;Frame,1977
4. Language use in international research: A citation analysis;Garfield;Current Contents,1990
5. Where scientists publish?;Inhaber;Social Studies of Science,1977