@article{10_4064_am_5_1_61_66,
     author = {T. Kaczorek},
     title = {Pewne twierdzenia o macierzach osobliwych},
     journal = {Applicationes Mathematicae},
     pages = {61--66},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {1960},
     doi = {10.4064/am-5-1-61-66},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-5-1-61-66/}
}