@article{PIM_1988_N_S_43_57_a1,
     author = {Xuan Tizuo},
     title = {On a {Problem} of {Erd\"os} and {Ivi\'c}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {9 - 15},
     publisher = {mathdoc},
     volume = {(N.S.) 43},
     number = {57},
     year = {1988},
     url = {https://geodesic-test.mathdoc.fr/item/PIM_1988_N_S_43_57_a1/}
}