@article{CMJ_2001__51_2_a7,
     author = {Mancera, Carmen H. and Pa\'ul, Pedro J.},
     title = {On {Pt\'ak{\textquoteright}s} generalization of {Hankel} operators},
     journal = {Czechoslovak Mathematical Journal},
     pages = {323--342},
     publisher = {mathdoc},
     volume = {51},
     number = {2},
     year = {2001},
     mrnumber = {1844313},
     zbl = {0983.47019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2001__51_2_a7/}
}