• Erratum : Geochemistry, mineral chemistry and pressure-temperature conditions of the Jõhvi magnetite quartzites and magnetite-rich gneisses, NE EstoniaSoesoo, Alvar; Nirgi, Siim; Urtson, Kristjan; Voolma, MargusEstonian journal of earth sciences2021 / p. 182-183 https://kirj.ee/wp-content/plugins/kirj/pub/Erratum-Table7-earth-3-2021_20210818083054.pdf https://doi.org/10.3176/earth.2021.05
• Eutrofeerumist põhjustavatest elementidest ja uraanist Soome lahe põhjasetetesPetersell, Valter; Karimov, Mark; Nirgi, Siim; Štokalenko, Mihkel; Alliksaar, Tiiu; Pajusaar, Siim; Voolma, Margus; Liiv, MerlinXXIV aprillikonverents "Maapõuekasutus ja keskkonnahoid" : teesid2016 / lk. 35-37 : ill
• Geochemistry, mineral chemistry and pressure-temperature conditions of the Jõhvi magnetite quartzites and magnetite-rich gneisses, NE EstoniaSoesoo, Alvar; Nirgi, Siim; Urtson, Kristjan; Voolma, MargusEstonian journal of earth sciences2021 / p. 71-93 : ill https://doi.org/10.3176/earth.2021.05 https://kirj.ee/wp-content/plugins/kirj/pub/Erratum-Table7-earth-3-2021_20210818083054.pdf https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85103841676&origin=inward&txGid=363caa97e46be7e13838bef4b215d65e https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000629329400001
• Geology and geochemistry of a paleoproterozoic iron mineralization in North-Eastern EstoniaNirgi, Siim; Soesoo, AlvarTransactions of the Karelian Research Centre of the Russian Academy of Sciences2021 / p. 25–43 : ill., map https://doi.org/10.17076/geo1492
• Geology and geochronology of the Estonian Precambrian basementNirgi, Siim; Soesoo, AlvarXI Baltic Stratigraphical Conference : abstracts and field guide2024 / p. 29 https://www.ester.ee/record=b5696260*est https://files.geocollections.info/5581dda4-94fa-4bcb-b1e7-8120d96af50b.pdf