Authors: HEIKKA R MINKKINEN P

Citation: R. Heikka et P. Minkkinen, COMPARISON OF SOME METHODS TO ESTIMATE THE LIMITING VALUE OF THE VARIOGRAM, V(H)(J), FOR THE SAMPLING INTERVAL J=0 IN SAMPLING ERROR ESTIMATION, Analytica chimica acta, 346(3), 1997, pp. 277-283

Authors: HEIKKA R

Citation: R. Heikka, COMPARISON OF 2 SAMPLING THEORIES TO CALCULATE THE INTEGRATION ERROR FOR ONE-DIMENSIONAL PROCESSES, Chemometrics and intelligent laboratory systems, 33(2), 1996, pp. 147-157

Authors: HEIKKA R MINKKINEN P TAAVITSAINEN VM

Citation: R. Heikka et al., COMPARISON OF VARIABLE SELECTION AND REGRESSION METHODS IN MULTIVARIATE CALIBRATION OF A PROCESS ANALYZER, Process control and quality, 6(1), 1994, pp. 47-54

Authors: HEIKKA R MINKKINEN P

Citation: R. Heikka et P. Minkkinen, A PROCESS ANALYTICAL STUDY ON THE D1 STAGE OF PULP BLEACHING .2. ROLEOF CHLORITE CONCENTRATION IN PREDICTING BRIGHTNESS, Paperi ja puu, 76(3), 1994, pp. 154-161

Authors: HEIKKA R MINKKINEN P

Citation: R. Heikka et P. Minkkinen, A PROCESS ANALYTICAL STUDY ON THE D1 STAGE IN PULP BLEACHING .1. DEPENDENCE OF MEASUREMENT ERROR ON SAMPLING FREQUENCY, Paperi ja puu, 75(8), 1993, pp. 592-599