@article{10_4064_cm_64_1_1_2,
     author = { },
     title = {Stanis{\l}aw {Hartman} (1914-1992)},
     journal = {Colloquium Mathematicum},
     pages = {1--2},
     publisher = {mathdoc},
     volume = {64},
     number = {1},
     year = {1993},
     doi = {10.4064/cm-64-1-1-2},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-64-1-1-2/}
}