%0 Journal Article %A W. Bielski %A E. Kruglenko %A J. J. Telega %T Young measures and their applications in micromechanics and optimization. I. Mathematical principles. %J Mathematica Applicanda %D 2003 %P 90-138 %V 31 %N 45/04 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/ma.v31i45/04.1914/ %R 10.14708/ma.v31i45/04.1914 %G pl %F 10_14708_ma_v31i45_04_1914