@article{10_2307_121047,
     author = {Burt Totaro},
     title = {Chern numbers for singular varieties and elliptic homology.},
     journal = {Annals of mathematics},
     year = {2000},
     volume = {151},
     number = {2},
     doi = {10.2307/121047},
     zbl = {1050.14500},
     url = {http://geodesic.mathdoc.fr/articles/10.2307/121047/}
}