Early diagenetic transformation stages revealed by micro-analytical studies of shelly phosphorites, Rakvere regionGraul, Sophie Jane Marie-Pascale Huguette; Kallaste, Toivo; Moilanen, Marko; Ndiaye, Mawo; Hints, RuttEstonian journal of earth sciences2023 / p. 34–37 : ill https://doi.org/10.3176/earth.2023.12 Petrography and the REE-composition of apatite in the Paleoproterozoic Pilgujärvi Sedimentary Formation, Pechenga Greenstone Belt, RussiaJoosu, Lauri; Lepland, Aivo; Kreitsmann, TimmuGeochimica et cosmochimica acta2016 / p. 135-153 : ill https://doi.org/10.1016/j.gca.2016.04.043