STRUCTURE AND CATALYTICAL INVESTIGATION OF Fe-Mo AND Fe-Ni CATALYSTS FOR AMMONIS SYNTHESIS Yu. V. Maksimov, R. Arents, I. P. Suzdalev et V. K. YatsimirskiJ. Phys. Colloques, 41 C1 (1980) C1-337DOI: https://doi.org/10.1051/jphyscol:19801125