@article{MS2_1978__43_166604,
     author = {John Gill},
     title = {Enhancing the convergence region of a sequence of bilinear transformations.},
     journal = {Mathematica Scandinavica},
     pages = {74--80},
     publisher = {mathdoc},
     volume = {43},
     year = {1978},
     zbl = {0423.40003},
     url = {http://geodesic.mathdoc.fr/item/MS2_1978__43_166604/}
}