@article{10_4064_ap_27_2_133_142,
     author = {J\'ozef Wenety Myjak},
     title = {A boundary value problem for non-linear differential equations with a retarded argument},
     journal = {Annales Polonici Mathematici},
     pages = {133--142},
     publisher = {mathdoc},
     volume = {27},
     number = {2},
     year = {1972},
     doi = {10.4064/ap-27-2-133-142},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-27-2-133-142/}
}