@article{NSJOM_1993_23_1a_13,
     author = {Pu\v{s}i\'c Nevena},
     title = {On {Ricci{\textendash}recurent} 

 semi-decomposable {Reimannian} spaces with a vanishing scalar curvature},
     journal = {Novi Sad Journal of Mathematics},
     pages = {167-177},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {1993},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1993_23_1a_13/}
}