@techreport {hopach,
   AUTHOR = {van der Laan, M.J. and Pollard, K.S.},
   TITLE = {Hybrid clustering of gene expression data with visualization and the bootstrap},
   INSTITUTION = {Group in Biostatistics, University of California},
   YEAR = {2001},
   NUMBER = {93},
   MONTH = {may},
   NOTE = {To appear in JSPI},
   URL = {http://www.stat.berkeley.edu/~laan/Research/Research_subpages/Papers/hopach.pdf}
}

@inproceedings {sci,
AUTHOR = {Pollard, K.S. and van der Laan, M.J.},
TITLE = {A method to identify significant clusters in gene expression data},
BOOKTITLE = {SCI2002 Proceedings},
ORGANIZATION={International Institute of Informatics and Systemics},
VOLUME = {II},
YEAR = {2002},
PAGES = {318--325},
URL = {http://www.bepress.com/ucbbiostat/paper107/}
}

@inproceedings{jsm,
AUTHOR = {Pollard, K.S. and van der Laan, M.J.},
TITLE = {New methods for identifying significant clusters in gene expression data}, 
BOOKTITLE = {Proceedings of the American Statistical Association},
ORGANIZATION={American Statistical Association},
VOLUME = {Biometrics Section [CD-ROM]},
YEAR = {2002},
URL = {http://www.stat.berkeley.edu/~laan/Research/Research_subpages/Papers/jsmpaper.pdf}
}

@book {kauf90,
   AUTHOR = {Kaufman, L. and Rousseeuw, P.J.},
    TITLE = {Finding Groups in Data: An Introduction to Cluster Analysis},
PUBLISHER = {John Wiley \& Sons},
  ADDRESS = {New York},
     YEAR = {1990},
}

@article {Golub,
   AUTHOR = {Golub, T.R. and Slonim, D.K. and Tamayo, P. and Huard, C. and Gaasenbeek, M. and Mesirov, J.P. and Coller, H. and Loh, M.L. and Downing, J.R. and Caligiuri, M.A. and Bloomfield, C.D. and Lander, E.S.},
    TITLE = {Molecular Classification of Cancer: Class Discovery and Class Prediction by Gene Expression Monitoring},
  JOURNAL = {Science},
   VOLUME = {286},
    MONTH = {October 15},
     YEAR = {1999},
    PAGES = {321--531},
      URL = {http://www-genome.wi.mit.edu/MPR/}
}

@article {hopach2,
   AUTHOR = {van der Laan, M.J. and Pollard, K.S.},
    TITLE = {A new algorithm for hybrid hierarchical clustering with visualization and the bootstrap},
  JOURNAL = {Journal of Statistical Planning and Inference},
   VOLUME = {117},
     YEAR = {2003},
    PAGES = {275--303}
}