@article{MS2_1993__73_2_167266,
     author = {K. V\"a\"an\"anen},
     title = {On the approximation of certain infinite products.},
     journal = {Mathematica Scandinavica},
     pages = {197--208},
     publisher = {mathdoc},
     volume = {73},
     number = {2},
     year = {1993},
     zbl = {0818.11028},
     url = {http://geodesic.mathdoc.fr/item/MS2_1993__73_2_167266/}
}