Estonian Phosphate Rock Dissolution in Hydrochloric Acid : Optimization of Acid Dosage and ConcentrationTõnsuaadu, Kaia; Kallas, Juha; Kallaste, Toivo; Urtson, Kristjan; Einard, Marve; Martin, Rasmus; Kuusik; Rein; Trikkel, AndresMinerals2023 / art. 578 https://doi.org/10.3390/min13040578