@article{10_4064_cm_18_1_137_142,
     author = {W. Mlak},
     title = {Hyponormal contractions},
     journal = {Colloquium Mathematicum},
     pages = {137--142},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1967},
     doi = {10.4064/cm-18-1-137-142},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-18-1-137-142/}
}