@article{Celenk90,

author={M. Celenk},
title={A color clustering technique for image segmentation},
journal={Computer Vision, Graphics and Image Processing},
volume={52},
year={1990},
pages={145-170},
theme = {compression,quantification,classification,segmentation}
 } 

@ARTICLE{Celenk90,

author = {M. Celenk},
year = 1990,
title = {{A} color clustering technique for image segmentation},
journal = {Computer Vision Graphics Image Processing},
volume = 52,
pages = {145-170},
theme = {segmentation+classification}
 }