共 13 条
- [11] PATTERNS OF CITATION DENSITIES BY DATE OF PUBLICATION IN PHYSICAL-REVIEW [J]. JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE, 1975, 26 (06): : 349 - 351
- [12] DENSITIES OF USE, AND ABSENCE OF OBSOLESCENCE, IN PHYSICS JOURNALS AT MIT [J]. JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE, 1974, 25 (03): : 172 - 182
- [13] YOUNG HD, 1962, STATISTICAL TREATMEN, P57