@article{NUMA_1981__37_132730,
     author = {I. Babuska},
     title = {Dorr, {M.R.:} {Error} {Estimates} for the {Combined} h and p {Versions} of the {Finite} {Element} {Method.}},
     journal = {Numerische Mathematik},
     pages = {257--278},
     publisher = {mathdoc},
     volume = {37},
     year = {1981},
     zbl = {0487.65058},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1981__37_132730/}
}