@article{DMGT_2014_34_1_a2,
     author = {Sen, Sagnik},
     title = {\protect\emph{L}(2, {1)-Labelings} of {Some} {Families} of {Oriented} {Planar} {Graphs}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {31--48},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2014_34_1_a2/}
}