1. Akai, T., Ataka, M., Yamashita, M., 2013. Patent JP 5120963, Japan, Jan. 16.
2. Feasibility of an efficient recovery of rare earth-activated phosphors from waste fluorescent lamps through dense-medium centrifugation;Hirajima;Sep. Purif. Technol.,2005
3. Floatability of rare earth phosphors from waste fluorescent lamps;Hirajima;Int. J. Miner. Process.,2005
4. Studies on color, crystallite-size, and magnetic susceptibility of ferric oxide and oxyhydroxide, Research reports of Kochi University. Agricultural;Kataoka;Science,1974
5. Separation of red (Y2O3:Eu3+), blue ((Sr, Ca, Ba)10(PO4)6Cl2:Eu2+) and green (LaPO4:Tb3+, Ce3+) rare earth phosphors by liquid/liquid extraction, J. Wuhan Univ;Mei;Technol.-Mater. Sci. Ed.,2009