• Employee performance, working time and tiredness in creative R&D jobs : employee survey from EstoniaHazak, Aaro; Virkebau, Marko; Tuulik, Viiu; Tint, Piia; Pille, Viive; Sõõru, ErveSpringer Proceedings in Business and Economics2018 / p. 321 - 330 https://doi.org/10.1007/978-3-319-70377-0_22 https://www.scopus.com/sourceid/21101077468 https://www.scopus.com/record/display.uri?eid=2-s2.0-85125619951&origin=resultslist&sort=plf-f&src=s&sid=488ec0e0970fca98059ee372b54b9768&sot=b&sdt=b&s=DOI%2810.1007%2F978-3-319-70377-0_22%29&sl=33&sessionSearchId=488ec0e0970fca98059ee372b54b9768&relpos=0