TY - JOUR AU - Long-Tu Yuan AU - Xiao-Dong Zhang TI - On the Erdős-Sós Conjecture for graphs on n = k + 4 vertices JO - Ars Mathematica Contemporanea PY - 2017 SP - 49 EP - 61 VL - 13 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.905.cb4/ DO - 10.26493/1855-3974.905.cb4 LA - en ID - 10_26493_1855_3974_905_cb4 ER -