@article{GT_2006_10_4_a2,
     author = {Li, Jun},
     title = {Zero dimensional {Donaldson{\textendash}Thomas} invariants of threefolds},
     journal = {Geometry & topology},
     pages = {2117--2171},
     publisher = {mathdoc},
     volume = {10},
     number = {4},
     year = {2006},
     doi = {10.2140/gt.2006.10.2117},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2006.10.2117/}
}