@article{10_1017_S0017089500001300,
     author = {Upton, C. J. F.},
     title = {On extensions of inequalities of {Kolmogoroff} and others and some applications to almost periodic functions},
     journal = {Glasgow mathematical journal},
     pages = {1--16},
     year = {1972},
     volume = {13},
     number = {1},
     doi = {10.1017/S0017089500001300},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500001300/}
}