3Bar-Ilan, Peritz B. C. The life span of a specific topic on the Web: the case of/informatrics0a quantitative analy- sis[J]. Scientometrics, 1999,46 (3) : 371 -- 382. 被引量：1
4Wallace Koehler. An Analysis of Web Page and Web Site Constancy and Permanence[J]. Journal of the A- merican Society for Information Science, 1999,50(2). 被引量：1
9Bar-Ilan, Peritz B.C.The life span of a specific topic on the Web: the case of "informatrics" a quantitative analysis.Scientometrics.1999, 46(3):371-382 被引量：1
10Wallace Koehler.An Analysis of Web Page and Web Site Constancy and Permanence.Journal of the American Society for Information Science.1999, 50(2) 被引量：1
