@article{ZNSL_2009_368_a1,
     author = {V. Bagdonavi\v{c}ius and R. Levulien\'e and M. S. Nikulin},
     title = {Goodness-of-fit for the {Cox} model from left truncated and right censored data},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {7--19},
     publisher = {mathdoc},
     volume = {368},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2009_368_a1/}
}