@Article{FischerHuson2010,
AUTHOR = {Fischer, Johannes and Huson, Daniel H.},
TITLE = {New Common Ancestor Problems in Trees and Directed Acyclic Graphs},
YEAR = {2010},
JOURNAL = {IPL},
VOLUME = {110},
NUMBER = {8-9},
PAGES = {331-335},
URL = {http://dx.doi.org/10.1016/j.ipl.2010.02.014},
NOTE = {http://www-ab.informatik.uni-tuebingen.de/people/fischer/lsa.pdf},
KEYWORDS = {explicit network, phylogenetic network, polynomial} }
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