B. Bielak

Oxidation of ethanol over supported manganese catalysts—effect of the carrier

J. Trawczyński, W. Mista, B. Bielak, 2005 .

EFFECT OF SOME PLANT CHEMICAL COMPOUNDS ON THE BEHAVIOUR AND REPRODUCTION OF SPIDER MITES (ACARINA: TETRANYCHIDAE)

Z. Dąbrowski, B. Bielak, 1978 .

Techniques and Methods Used in Studies of Resistance to Panonychus ulmi in Apple Varieties

Z. Dąbrowski, B. Bielak, 1985 .