@article{10_37236_2262,
     author = {Ryan R. Martin},
     title = {The edit distance function and symmetrization},
     journal = {The electronic journal of combinatorics},
     year = {2013},
     volume = {20},
     number = {3},
     doi = {10.37236/2262},
     zbl = {1298.05174},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2262/}
}