@article{MAN_1975__214_162678,
     author = {Claus Michael Ringel},
     title = {The {Indecomposable} {Representations} of the {Dihedral} {2-Groups.}},
     journal = {Mathematische Annalen},
     pages = {19--34},
     publisher = {mathdoc},
     volume = {214},
     year = {1975},
     zbl = {0299.20005},
     url = {http://geodesic.mathdoc.fr/item/MAN_1975__214_162678/}
}