@article{ELA_2009__18__a38,
     author = {Bapat, Ravindra B. and Lal, Arbind K. and Pati, Sukanta},
     title = {The distance matrix of a bidirected tree},
     journal = {The electronic journal of linear algebra},
     pages = {233--245},
     publisher = {mathdoc},
     volume = {18},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2009__18__a38/}
}