@article{MAN_1968__178_161747,
     author = {M. BREUER},
     title = {Fredholm {Theories} in von {Neumann} {Algebras.} {I.}},
     journal = {Mathematische Annalen},
     pages = {243--254},
     publisher = {mathdoc},
     volume = {178},
     year = {1968},
     zbl = {0162.18701},
     url = {http://geodesic.mathdoc.fr/item/MAN_1968__178_161747/}
}