TY - JOUR AU - Yonah Cherniavsky AU - Avraham Goldstein AU - Vadim E. Levit TI - Balanced Abelian group-valued functions on directed graphs JO - Ars Mathematica Contemporanea PY - 2017 SP - 307 EP - 315 VL - 13 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.910.460/ DO - 10.26493/1855-3974.910.460 LA - en ID - 10_26493_1855_3974_910_460 ER -