@article{10_2298_PIM0897099N,
     author = {T. D. Narang and Shavetambry Tejpal},
     title = {On $\delta$-suns},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {99 },
     publisher = {mathdoc},
     volume = {_N_S_83},
     number = {97},
     year = {2008},
     doi = {10.2298/PIM0897099N},
     zbl = {1265.41075},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/PIM0897099N/}
}