@article{JGAA_2009_13_2_a3,
     author = {Daniel Berend and Shira Zucker},
     title = {The {Black-and-White} {Coloring} {Problem} on {Trees}},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {133--152},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {2009},
     doi = {10.7155/jgaa.00180},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00180/}
}