WO9920422-A1  CHEN Y ET AL: "FORMATION OF METAL HYDRIDES BY MECHANICAL ALLOYING" JOURNAL OF ALLOYS AND COMPOUNDS, vol. 217, no. 2, 1 fevrier 1995, pages 181-184, XP000486485;  FUJII H ET AL: 'Hydriding properties of the Mg2Ni-H system synthesized by reactive mechanical grinding' JOURNAL OF ALLOYS AND COMPOUNDS vol. 232, no. 1-2, Janvier 1996, page L16-L19, XP004077233;  HUOT J ET AL: "Mechanical alloying of Mg-Ni compounds under hydrogen and inert atmosphere" JOURNAL OF ALLOYS AND COMPOUNDS, vol. 231, 15 decembre 1995, page 815-819 XP004077434EP1024918-A1  See references of WO 9920422A1US7201789-B1  "International Energy Agency Hydrogen Implementing Agreement"; Summary of Task Workshop, Mar. 1997 Alexandria, VA, Task 12-Mental Hydrides for Hydrogen Storage.;  International Energy Agency Hydrogen Implementing Agreement; Summary of Task Workshop, Jul. 14, 1997 Henniker, New Hampshire, Task 12-Metal Hydrides for Hydrogen Storage.;  J. Huot et al., "Mechanical alloying of Mg-Ni compounds under hygrodgen and inert atmosphere", XP004077434 J. of Alloys and Compounds, vol. 231, pp. 815-819, 1995.;  L. Guoxian et al., "Hydrogen absorption and desorption characteristics of mechanically milled Mg-35wt.%Fe Ti1.2 powders", J. of Alloys and Compounds, vol. 223, pp. 111-114, 1995.;  Poster List: Gordon Research Conference on Hydrogen-Metal Systems, New England College Henniker, New Hampshire, July 13-18, 1997.;  S. Orimo and H. Fujii, "Hydriding properties of the Mg2Ni-H system synthesized by reactive mechanical Grinding", XP004077233, J. of Alloys and Compounds, vol. 232, pp. L16-L19, 1996.;  Semianual Reporty to the Executive Committee of the IEA Agreement on the Production and Utilization of Hydrogen submitted Apr. 30, 1997 for Meeting of Jun. 4-5, 1997.;  Y. Chen et al., "Formation of metal hydrides by mechanical alloying", J. of Alloys and Compounds, vol. 217, No. 2, pp. 182-184, 1995.;  Zaluska et al., "Mechanical Destabilization of Light Metal Hydride", Project 8, 1997 annual Report IEA Agreement on the Production an Utilization of Hydrogen, late 1998.;  Zaluska et al., Synergy of hydrogen sorption in ball-milled hydrides of Mg and Mg2Ni:, J. of Alloys and Compounds, 289:197-206, (1999), Elsevier Sciences.