Prols, Janis, Ērika Teirumnieka, and Edmunds Teirumnieks. 2015. “Distribution of Iron and Iron Compounds in the Kemeri - Jaunkemeri Occurence of Sulphide Water”.
ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (June): 244-50.
https://doi.org/10.17770/etr2015vol2.626.