@article{MS2_1967__21_166009, author = {S. Sullivan Anderson and G. Chartrand}, title = {The {Lattice-Graph} of the {Topology} of a {Transitive} {Directed} {Graph.}}, journal = {Mathematica Scandinavica}, pages = {105--109}, publisher = {mathdoc}, volume = {21}, year = {1967}, zbl = {0165.57502}, url = {http://geodesic.mathdoc.fr/item/MS2_1967__21_166009/} }