According to Citeseer (http://citeseer.ist.psu.edu/articles.html):

The book Algorithms for Clustering Data by Jain and Dubes (Prentice-Hall, Englewood Cliffs NJ, U.S.A., 1988) is ranked # 93 in Most Cited Articles in Computer Science (over all times).

The survey paper "Data Clustering: A Review" by Jain, Murty and Flynn (ACM Computing Surveys, Vol 31, No. 3, 1999, 264-323) is ranked # 23 in Most Cited Articles in Computer Science Published in 1999.