Determination of the functional state of central nervous system in chemical stress by EEG and psychometrical methodsTuulik, Viiu; Meister, Ants; Raja, Aimur; Lossmann, EerikProc. of a-Conference1994 / p. 30 The chemistry workers brain state quantitative estimating on the basis of alpha activity of EEGRaja, Aimur; Tuulik, Viiu; Meister, Ants; Lossmann, EerikProc. of a-Conference1994 / p. 36