• Chitinozoan biostratigraphy in the Haljala Regional Stage, Upper Ordovician: A high-resolution approach from NE EstoniaBauert, Garmen; Nõlvak, Jaak; Bauert, HeikkiGFF2014 / p. 26-29 : ill https://doi.org/10.1080/11035897.2013.857715 https://www.scopus.com/sourceid/25844 https://www.scopus.com/record/display.uri?eid=2-s2.0-84901189407&origin=inward&txGid=ea2001acac5d4ee865c758bcf61e995d https://jcr.clarivate.com/jcr-jp/journal-profile?journal=GFF&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000335945500006