@article{ELMA_1989__44_3_141453,
     author = {Hans E. Debrunner},
     title = {Die {Dehnsche} {Zerlegungsinvariante} f\"ur hyperbolische {Polyederbausteine.}},
     journal = {Elemente der Mathematik},
     pages = {66--70},
     publisher = {mathdoc},
     volume = {44},
     number = {3},
     year = {1989},
     zbl = {0706.52002},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1989__44_3_141453/}
}