@article{JEMS_2010_12_6_a8,
     author = {Daniel Huybrechts},
     title = {Chow groups of {K3} surfaces and spherical objects},
     journal = {Journal of the European Mathematical Society},
     pages = {1533--1551},
     publisher = {mathdoc},
     volume = {12},
     number = {6},
     year = {2010},
     doi = {10.4171/jems/240},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/240/}
}