Jonathan Moody Ricardo Bezerra de Andrade e Silva Joseph Vanderwaart Joseph Ramsey Clark Glymour Classification and filtering of spectra: A case study in mineralogy. 517-530 2002 6 Intell. Data Anal. 6 http://iospress.metapress.com/openurl.asp?genre=article&issn=1088-467X&volume=6&issue=6&spage=517 db/journals/ida/ida6.html#MoodySVRG02