@article{DEMR_2017_8_a0,
     author = {A.-R. K. Ramazanov and V. G. Magomedova},
     title = {On conditions for the convexity of splines with respect to three-point rational interpolants},
     journal = {Daghestan Electronic Mathematical Reports},
     pages = {1--6},
     publisher = {mathdoc},
     volume = {8},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DEMR_2017_8_a0/}
}