@article{GMJ_1999__6_1_48235,
     author = {Kiguradze, I. and P\r{u}\v{z}a, B.},
     title = {On periodic solutions to nonlinear functional-differential equations.},
     journal = {Georgian Mathematical Journal},
     pages = {45--64},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1999},
     zbl = {0921.34063},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_1999__6_1_48235/}
}