TY - JOUR AU - Edita Rollová AU - Michael Schubert AU - Eckhard Steffen TI - Flows in signed graphs with two negative edges JO - The electronic journal of combinatorics PY - 2018 VL - 25 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.37236/4458/ DO - 10.37236/4458 ID - 10_37236_4458 ER -