@article{10_4064_am_6_2_149_187,
     author = {W. Szwarc},
     title = {Zagadnienia transportowe},
     journal = {Applicationes Mathematicae},
     pages = {149--187},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {1962},
     doi = {10.4064/am-6-2-149-187},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-6-2-149-187/}
}