@article{10_14708_ma_v11i22_1583,
     author = {William Birnbaum},
     title = {On the mathematics of competing risks},
     journal = {Mathematica Applicanda},
     pages = { 5--82},
     publisher = {mathdoc},
     volume = {11},
     number = {22},
     year = {1983},
     doi = {10.14708/ma.v11i22.1583},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v11i22.1583/}
}