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• On the properties of forward and backward shifts of vector fieldsKaldmäe, Arvo; Kaparin, Vadim; Kotta, Ülle; Mullari, Tanel; Pawluszewicz, EwaProceedings of the Estonian Academy of Sciences2022 / p. 314-325 https://doi.org/10.3176/proc.2022.4.02 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85144227254&origin=inward&txGid=0a25d396b3d8b83e0d0b9a70df64547d https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000901995900002