Industry 4.0 laboratoryVaher, Kristo; Vainola, Vello; Otto, TaunoIV International Scientific Conference, Industry 4.0. Summer session, 24-27.06.2019, Burgas, Bulgaria : proceedings. Vol. 1/52019 / p. 52-53 ; ill https://industry-4.eu/winter/sbornik/1-2019.pdf Industry 4.0 laboratoryVaher, Kristo; Vainola, Vello; Otto, TaunoInternational Scientific Journal Industry 4.02019 / p. 210-211 : ill https://stumejournals.com/journals/i4/2019/5/210