@article{MM2_1984__46_154997,
     author = {Jes\'us M. Ruiz},
     title = {Central {Orderings} in {Fields} of {Real} {Meromorphic} {Function} {Germs.}},
     journal = {Manuscripta mathematica},
     pages = {193--214},
     publisher = {mathdoc},
     volume = {46},
     year = {1984},
     zbl = {0538.14018},
     url = {http://geodesic.mathdoc.fr/item/MM2_1984__46_154997/}
}