| 1635 | |
| Braam, R. R., Moed, H. F., & Van Raan, A. F. J. | |
| Mapping of Science by Combined Co-Citation and Word Analysis. II: Dynamical Aspects | |
| mapping/ co-citation relations/ word analysis/ clusters/ | |
| Journal of the American society for information science. 42(4):252-266, 1991 | |
| 1991 | |
