@article{AMI_1998_25_a4,
     author = {Bui Minh Phong},
     title = {Quasi multiplicative functions with congruence property},
     journal = {Annales mathematicae et informaticae},
     pages = {55--59},
     publisher = {mathdoc},
     volume = {25},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMI_1998_25_a4/}
}