@article{Egozcue2003,
author = {Egozcue, J.J. and Pawlowsky-Glahn, V. and Mateu-Figueras, G. and Barcelo-Vidal, C.},
title= {sometric logratio transformations for compositional data analysis},
year = {2003},
doi = {10.1023/A:1023818214614},
journal = {Mathematical Geology},
volume = {35},
number = {3},
pages = {279--300},
}