@article{10_4064_fm_117_1_1_4,
     author = {Mieczys{\l}aw Borowiecki},
     title = {A characterization of middle graphs and a matroid associated with middle graphs of hypergraphs},
     journal = {Fundamenta Mathematicae},
     pages = {1--4},
     publisher = {mathdoc},
     volume = {117},
     number = {1},
     year = {1983},
     doi = {10.4064/fm-117-1-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-117-1-1-4/}
}