@article{10_4064_ap_35_3_253_260,
     author = {V. Lakshmikantham and A. R. Mitchell and R. W. Mitchell},
     title = {On the existence of solutions of differential equations of retarded type in a {Banach} space},
     journal = {Annales Polonici Mathematici},
     pages = {253--260},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1977},
     doi = {10.4064/ap-35-3-253-260},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-35-3-253-260/}
}