@article{NSJOM_1995_25_1a_5,
     author = {Irinel 

 Radomir and Nicolae N. Pascu},
     title = {On a 

 generalization of {Nehari's} criterion},
     journal = {Novi Sad Journal of Mathematics},
     pages = {47-51},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {1995},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1995_25_1a_5/}
}