@article{10_4064_cm_44_2_241_247,
     author = {Jonathan L. Gross and Ronald H. Rosen},
     title = {A combinatorial characterization of planar 2-complexes},
     journal = {Colloquium Mathematicum},
     pages = {241--247},
     publisher = {mathdoc},
     volume = {44},
     number = {2},
     year = {1981},
     doi = {10.4064/cm-44-2-241-247},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-44-2-241-247/}
}