@article{04181401, title = {On an axiom concerning the theory of ``interval orders''.}, journal = {Mathematica Pannonica}, volume = {1}, year = {1990}, pages = {117-123}, zbl = {0717.06001}, language = {en}, url = {http://dml.mathdoc.fr/item/04181401} }
Isler, Romano. On an axiom concerning the theory of “interval orders”.. Mathematica Pannonica, Tome 1 (1990) pp. 117-123. http://gdmltest.u-ga.fr/item/04181401/