@article{MAN_1996__306_3_165459,
     author = {G.-M. Greuel and Y.A. Drozd},
     title = {Semicontinuity for representations of one-dimensional {Cohen-Macaulay} rings.},
     journal = {Mathematische Annalen},
     pages = {371--390},
     publisher = {mathdoc},
     volume = {306},
     number = {3},
     year = {1996},
     zbl = {0866.16005},
     url = {http://geodesic.mathdoc.fr/item/MAN_1996__306_3_165459/}
}