Revision of the rest of the paper.

data.bib

@@ -5350,3 +5350,11 @@ note = {In Press}
   year=1994,
   pages={133--138}}
 }
+
+@article{albertson2004coloring,
+  title={Coloring with no $2 $-Colored $ P\_4 $'s},
+  author={Albertson, Michael O and Chappell, Glenn G and Kierstead, Hal A and K{\"u}ndgen, Andr{\'e} and Ramamurthi, Radhika},
+  journal={the electronic journal of combinatorics},
+  pages={R26--R26},
+  year={2004}
+}