@article{IM_1976__34_142395,
     author = {A.W. Knapp and N.R. Wallach},
     title = {Szeg\"o {Kernels} {Associated} with {Discrete} {Series.}},
     journal = {Inventiones mathematicae},
     pages = {163--200},
     publisher = {mathdoc},
     volume = {34},
     year = {1976},
     zbl = {0332.22015},
     url = {http://geodesic.mathdoc.fr/item/IM_1976__34_142395/}
}