@article{10_37236_788,
     author = {Ralf Schiffler},
     title = {A cluster expansion formula {(\(A_{n}\)} case)},
     journal = {The electronic journal of combinatorics},
     year = {2008},
     volume = {15},
     doi = {10.37236/788},
     zbl = {1184.13064},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/788/}
}