| Similarity | Rank | |
|---|---|---|
| OCLC | 0.828 | 87993 |
| full-text | 0.801 | 53552 |
| LexisNexis | 0.798 | 79110 |
| Elsevier | 0.783 | 55357 |
| Scholarly | 0.732 | 67289 |
| Publishers | 0.720 | 20170 |
| Libraries | 0.720 | 20013 |
| Databases | 0.714 | 46848 |
| Abstracts | 0.707 | 53705 |
| McGraw-Hill | 0.705 | 61469 |
| Publishing | 0.704 | 11731 |
| Medline | 0.704 | 85680 |
| bibliographic | 0.700 | 45374 |
| Ancestry.com | 0.685 | 83668 |
| MEDLINE | 0.683 | 98555 |
| databases | 0.682 | 8190 |
| Kluwer | 0.682 | 90645 |
| Journals | 0.680 | 36718 |
| Publications | 0.680 | 17347 |
| bibliographies | 0.680 | 72627 |
| PubMed | 0.679 | 49175 |
| searchable | 0.669 | 23298 |
| Genealogical | 0.668 | 56615 |
| Publisher | 0.664 | 18267 |
| Library's | 0.660 | 40088 |