@article{MZ_1992__209_2_174380,
     author = {P.H. Maserick and E.H. Youssfi},
     title = {Integral characterization of elementary definitizable functions.},
     journal = {Mathematische Zeitschrift},
     pages = {531--546},
     year = {1992},
     volume = {209},
     number = {2},
     zbl = {0734.43003},
     url = {http://geodesic.mathdoc.fr/item/MZ_1992__209_2_174380/}
}