• Multi-layer cyber-physical control method for mobile robot safety systemsPikner, Heiko; Sell, Raivo; Majak, Jüri; Karjust, KristoProceedings of the Estonian Academy of Sciences2021 / p. 383-391 : ill https://doi.org/10.3176/proc.2021.4.03 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85122069442&origin=inward&txGid=5b0911a92aa708ba0a254782561bba02 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000750607700003