%0 Journal Article %A J. C. Ferreira %A M. G. B. Marietto %T Mappings preserving sum of products $a\circ b+ba^{*}$ on factor von Neumann algebras %J Algebra and discrete mathematics %D 2021 %P 61-70 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2021_31_1_a3/ %G en %F ADM_2021_31_1_a3