TY - RPRT TI - Singularity and Nonnormality in the Classification of Compositional Data AU - Geoffrey C. Bohling AU - J.C. Davis AU - Ricardo A. Olea AU - Jan Harff PY - 1998 DO - 10.1023/a:1021705120065 UR - https://pubs.usgs.gov/publication/70020485 ID - 70020485 ER -