@article{MOMA_1986__101_178259,
     author = {Mohammed El Bachir Bekka},
     title = {The {Projection} {Theorem} for {Spectral} {Sets.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {1--10},
     publisher = {mathdoc},
     volume = {101},
     year = {1986},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1986__101_178259/}
}