@article{10_1090_S0894_0347_09_00646_8,
     author = {Pandharipande, R. and Thomas, R.},
     title = {Stable pairs and {BPS} invariants},
     journal = {Journal of the American Mathematical Society},
     pages = {267--297},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {2010},
     doi = {10.1090/S0894-0347-09-00646-8},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-09-00646-8/}
}