1.
Nucleic Acids Res
; 19(10): 2786, 1991 May 25.
Article
in English
| MEDLINE
| ID: mdl-1710347
2.
Science
; 173(3992): 164-6, 1971 Jul 09.
Article
in English
| MEDLINE
| ID: mdl-17739643
ABSTRACT
Significant contacts among scientists within research specialties are generally infrequent and are distributed as an essentially random process, the pattern of most contacts conforming to a Poisson distribution. Extremely productive persons in a specialty, however, seem to form a separate distribution; they have a considerably higher number of contacts.