@article{10_21136_CMJ_1991_102501,
     author = {Changat, Manoj},
     title = {On order and geodesic alignment of a connected bigraph},
     journal = {Czechoslovak Mathematical Journal},
     pages = {713--715},
     publisher = {mathdoc},
     volume = {41},
     number = {4},
     year = {1991},
     doi = {10.21136/CMJ.1991.102501},
     mrnumber = {1134959},
     zbl = {0762.05042},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102501/}
}