E. Pentcheva

Equilibria and geothermometry in hot alkaline waters from granites of S. W. Bulgaria

G. Michard, B. Sanjuan, C. Fouillac, 1986 .

Determination of arsenic, mercury, selenium, thallium, tin and bismuth in environmental materials by inductively coupled plasma emission spectrometry

N. Daskalova, E. Pentcheva, N. Velitchkova, 2004 .

Microbial Diversity in Heavy-Metal Polluted Waters

E. Golovinsky, V. Groudeva, R. Trifonova, 2005 .

Sulfur species and associated trace elements in south-west Bulgarian thermal waters

R. Gijbels, L. dack, E. Pentcheva, 1991 .