@article{10_37236_1801,
     author = {Dan Singer},
     title = {A bijective proof of {Borchardt's} identity},
     journal = {The electronic journal of combinatorics},
     year = {2004},
     volume = {11},
     number = {1},
     doi = {10.37236/1801},
     zbl = {1053.05010},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1801/}
}