%0 Journal Article %A Zhi-Hong Sun %A Lin-Lin Wang %A Yi-Li Wu %T TurĂ¡n's problem and Ramsey numbers for trees %J Colloquium Mathematicum %D 2015 %P 273-298 %V 139 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm139-2-8/ %R 10.4064/cm139-2-8 %G en %F 10_4064_cm139_2_8