@article{10_4064_fm194_3_3,
     author = {Arthur W. Apter},
     title = {Level by level equivalence and
 the number of normal measures over $P_{\kappa} (\lambda )$},
     journal = {Fundamenta Mathematicae},
     pages = {253--265},
     publisher = {mathdoc},
     volume = {194},
     number = {3},
     year = {2007},
     doi = {10.4064/fm194-3-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm194-3-3/}
}