%0 Journal Article %A Jerzy Jezierski %T The coincidence Nielsen number for maps into real projective spaces %J Fundamenta Mathematicae %D 1991 %P 121-136 %V 140 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-140-2-121-136/ %R 10.4064/fm-140-2-121-136 %G en %F 10_4064_fm_140_2_121_136