@article{DMGT_2016_36_1_a10,
     author = {Czap, J\'ulius and Przyby{\l}o, Jakub and \v{S}krabu\v{l}\'akov\'a, Erika},
     title = {On {An} {Extremal} {Problem} {In} {The} {Class} {Of} {Bipartite} {1-Planar} {Graphs}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {141--151},
     publisher = {mathdoc},
     volume = {36},
     number = {1},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2016_36_1_a10/}
}