id	keyword
esrj-66429	lake
esrj-66429	water
esrj-66429	chapala
esrj-66429	chapala lake
esrj-66429	l-1
esrj-66429	group
esrj-66429	values
esrj-66429	chemical
esrj-66429	groundwater
esrj-66429	analysis
esrj-66429	sample
esrj-66429	figure
esrj-66429	rift
esrj-66429	lerma
esrj-66429	surface
esrj-66429	lake water
esrj-66429	� �
esrj-66429	quality
esrj-66429	river
esrj-66429	agua
esrj-66429	composition
esrj-66429	del
esrj-66429	et al
esrj-66429	multivariate