[1]S. Berski, G. Banaszek, и H. Dyja, PMI, т. 170, вып. 2, сс. 169-172, апр. 2007.

[1]S. Berski, G. Banaszek, and H. Dyja, “Theoretical analysis of metal flow velocity of bimetallic rod during extrusion process”, PMI, vol. 170, no. 2, pp. 169-172, Apr. 2007.