Citation: D. Bednarek et al., INVESTIGATIONS INTO THE INFLUENCE OF SELE NIUM AND VITAMIN-E ON RED AND WHITE BLOOD PICTURES, ON CONCENTRATIONS OF SEVERAL MINERALS AND MICROELEMENTS IN BLOOD-SERUM, AND ON IMMUNOLOGICAL PARAMETERS IN CALVES, DTW. Deutsche tierarztliche Wochenschrift, 103(11), 1996, pp. 457-459