@article{DAN_1974_217_3_a4,
     author = {M. M. Konstantinov and D. D. Bainov},
     title = {On the existence of solutions of systems of functional differential equations of superneutral type with iterated delay},
     journal = {Doklady Akademii Nauk},
     pages = {519--521},
     publisher = {mathdoc},
     volume = {217},
     number = {3},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_217_3_a4/}
}