1. Jouni T. P., Erkki Y.O. P. Recovery of manganese from mixed metal solutions by solvent extraction with organophosphorus acid extractants // Записки Горного института. 2008. Том 174. C. 145-147.

1. Jouni T. P., Erkki Y.O. P. Recovery of manganese from mixed metal solutions by solvent extraction with organophosphorus acid extractants // Journal of Mining Institute. 2008. Том 174. C. 145-147.