%0 Journal Article %A H. Sarbadhikari %A K. P. S. Bhaskara Rao %A E. Grzegorek %T Complementation in the lattice of Borel structures %J Colloquium Mathematicum %D 1974 %P 29-32 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-31-1-29-32/ %R 10.4064/cm-31-1-29-32 %G en %F 10_4064_cm_31_1_29_32