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- [44] BENZENESULFONATES OF RARE-EARTH ELEMENTS ZHURNAL NEORGANICHESKOI KHIMII, 1975, 20 (05): : 1220 - 1223
- [46] HEXAMOLYBDATES OF RARE-EARTH ELEMENTS ZHURNAL NEORGANICHESKOI KHIMII, 1974, 19 (08): : 2018 - 2022
- [49] INDIRECT POLAROGRAPHIC-DETERMINATION OF SUM OF RARE-EARTH ELEMENTS INDUSTRIAL LABORATORY, 1976, 42 (04): : 508 - 512
- [50] DETERMINATION OF THE RARE-EARTH ELEMENTS BY INSTRUMENTAL NEUTRON-ACTIVATION MONATSHEFTE FUR CHEMIE, 1980, 111 (03): : 681 - 691