@article{10_1090_S1079_6762_06_00154_5,
     author = {Cornea, Octav and Lalonde, Fran\~A{\textsection}ois},
     title = {Cluster homology: {An} overview of the construction and results},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {1--12},
     publisher = {mathdoc},
     volume = {12},
     year = {2006},
     doi = {10.1090/S1079-6762-06-00154-5},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-06-00154-5/}
}