@article{NSJOM_1975_5_Nonea_3,
     author = {Had\v{z}i\'c Olga},
     title = {On the {Chi} {Song} 

 {Wong's} class {U(X)} in locally convex spaces},
     journal = {Novi Sad Journal of Mathematics},
     pages = {19-21},
     publisher = {mathdoc},
     volume = {5},
     year = {1975},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1975_5_Nonea_3/}
}