%0 Journal Article %A Edita Rollová %A Michael Schubert %A Eckhard Steffen %T Flows in signed graphs with two negative edges %J The electronic journal of combinatorics %D 2018 %V 25 %N 2 %U http://geodesic.mathdoc.fr/articles/10.37236/4458/ %R 10.37236/4458 %F 10_37236_4458