1. P. MICHEL, R. VANHELLEPUTTE (1985). Industrie Minérale. Les Techniques (France) 5–85. Supplement 67, 215–218.
2. LYAUDET G., P. MICHEL, J. MORET, J.M. WINTER (1985). A New Unit for Purification of Uranium Solutions in the LODEVE Mill. Project, Construction and Operating Costs. I.A.E.A. Technical Committee Meeting. Development of Projects for the Production of Uranium Concentrates. Vienna Austria.