1. Caltaru , M., Petrescu , N., Vasiliu , C.: Записки Горного института. 167, 135-138 (2006)

1. Caltaru , M., Petrescu , N., Vasiliu , C.: Copper extraction from diluted solutions using hollow fiber supported liquid membranes. Journal of Mining Institute. 167, 135-138 (2006)