TY - JOUR AU - Zhi-Hong Sun AU - Lin-Lin Wang AU - Yi-Li Wu TI - TurĂ¡n's problem and Ramsey numbers for trees JO - Colloquium Mathematicum PY - 2015 SP - 273 EP - 298 VL - 139 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm139-2-8/ DO - 10.4064/cm139-2-8 LA - en ID - 10_4064_cm139_2_8 ER -