@article{10_4064_ap_14_3_321_333,
     author = {J. Szarski},
     title = {On an integro-differential equation},
     journal = {Annales Polonici Mathematici},
     pages = {321--333},
     publisher = {mathdoc},
     volume = {14},
     number = {3},
     year = {1963},
     doi = {10.4064/ap-14-3-321-333},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-14-3-321-333/}
}