@article{MASLO_2003_53_1_a4,
     author = {Ewert, Janina and Ponomarev, Stanislav P.},
     title = {On the convergence of $\omega$-primitives},
     journal = {Mathematica slovaca},
     pages = {59--66},
     year = {2003},
     volume = {53},
     number = {1},
     mrnumber = {1964204},
     zbl = {1054.26003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_2003_53_1_a4/}
}