@article{DMPS_2014_34_1-2_a4,
     author = {St\k{e}pniak, Czes{\l}aw},
     title = {On useful schema in survival analysis after heart attack},
     journal = {Discussiones Mathematicae. Probability and Statistics},
     pages = {63--69},
     publisher = {mathdoc},
     volume = {34},
     number = {1-2},
     year = {2014},
     zbl = {1327.62502},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMPS_2014_34_1-2_a4/}
}