Thé content of heavy metals in feeds of thé Tyva Republic R.B. Chysyma, V.L. Petukhov, E.E. Kuzmina, E.Y. Barinov, Yu. A. Dukhanov et G.N. Korotkova J. Phys. IV France, 107 (2003) 297-299 DOI: 10.1051/jp4:20030300
