@article{PIM_1967_N_S_07_21_a13,
     author = {D.D. Adamovi\'c},
     title = {Generalisation de quelques theoremes de {A.} {Zigmund,} {B.} {Sz.-} {Nagy} et {R.} {P.} {Boas} {(I)}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {123 },
     publisher = {mathdoc},
     volume = {_N_S_07},
     number = {21},
     year = {1967},
     url = {http://geodesic.mathdoc.fr/item/PIM_1967_N_S_07_21_a13/}
}