%0 Journal Article %A Paul Howard %A Eleftherios Tachtsis %T On rigid relation principles in set theory without the axiom of choice %J Fundamenta Mathematicae %D 2016 %P 199-226 %V 232 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm960-12-2015/ %R 10.4064/fm960-12-2015 %G en %F 10_4064_fm960_12_2015