Dissolution of rare earth elements from phosphate ore in hydrochloric acidHacialioglu-Erlenheim, Gizem; Tõnsuaadu, Kaia; Urtson, Kristjan; Kallaste, Toivo; Trikkel, AndresXIV International Mineral Processing and Recycling Conference : proceedings2021 / p. 166-171 : ill https://imprc.tfbor.bg.ac.rs/download/IMPRC_2021_Proceedings.pdf Geochemical heterogeneity of Estonian graptolite argilliteVoolma, Margus; Soesoo, Alvar; Hade, Sigrid; Hints, Rutt; Kallaste, ToivoOil shale2013 / p. 377-401 : ill https://artiklid.elnet.ee/record=b2633538*est https://doi.org/10.3176/oil.2013.3.02 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Palaeoenvironmental signatures revealed from rare earth element (REE) compositions of vertebrate microremains of the Vesiku Bone Bed (Homerian, Wenlock), Saaremaa Island, EstoniaFadel, Alexandre; Žigaitė, Živilė; Blom, Henning; Pérez-Huerta, Alberto; Jeffries, Teresa; Märss, Tiiu; Ahlberga, Per ErikEstonian Journal of Earth Sciences2015 / p. 36 - 41 https://doi.org/10.3176/earth.2015.07 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS