Heart rate variability in relation of autonomic dysfunctions of nervous systemVilkis, A.; Tuulik, Viiu; Agudin, V.; Altrov, EppProceedings of the 13th Triennial Congress of the International Ergonomics Association, June 29-July 4, 1997, Tampere : From Experience to Innovation : IEA'97. Vol. 71997 / p. 583

Keemiline stressTuulik, Viiu; Riisalo, Riina; Altrov, EppEesti Töötervishoid1997 / 2, lk. 7-9, 26-27

Neural network algorithms for the analyzing of QEEG and psychometrical/psychological data by chronic occupational neurotixic [!] diseases of CNSTuulik, Viiu; Altrov, Epp; Riisalo, R.; Meister, Ants; Raja, Aimur; Lossmann, EerikEuro Brain '97, 26-28 November 1997 : proceedings1997 / p. 101-102

QEEG-based methods for diagnosing the vigilance levelsRaja, Aimur; Tuulik, Viiu; Lossmann, Eerik; Meister, Ants; Riisalo, R.; Altrov, EppVIII Mediterranean Conference on Medical and Biological Engineering and Computing : Medicon'98, June 14-17, 1998, Lemesos, Cyprus : final programme and abstracts of papers1998 / p. 109

QEEG-based methods for diagnozing the vigilance levelsRaja, Aimur; Tuulik, Viiu; Lossmann, Eerik; Meister, Ants; Riisalo, R.; Altrov, EppVIII Mediterranean Conference on Medical and Biological Engineering and Computing : Medicon'98, June 14-17, 1998, Lemesos, Cyprus : [proceedings : CD-ROM]1998 / [4] p.: ill

The estimation of occupational physical factors on the workers' health in furniture industryAltrov, Epp; Vilkis, A.; Tuulik, ViiuAbstracts of 25th International Congress on Occupational Health, Stockholm, September 15-20, 19961996 / p. 274