@article{RCM_1997_31_2_a5,
     author = {W. A. Z\'U\~NIGA-GALINDO},
     title = {Zeta functions of singular curves over finite fields},
     journal = {Revista colombiana de matematicas},
     pages = {115--124},
     publisher = {mathdoc},
     volume = {31},
     number = {2},
     year = {1997},
     url = {http://geodesic.mathdoc.fr/item/RCM_1997_31_2_a5/}
}