@article{10_37236_765,
     author = {Ji\v{r}{\'\i} Matou\v{s}ek and Robert \v{S}\'amal},
     title = {Induced trees in triangle-free graphs},
     journal = {The electronic journal of combinatorics},
     year = {2008},
     volume = {15},
     doi = {10.37236/765},
     zbl = {1159.05035},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/765/}
}