@article{10_4064_fm_81_1_35_41,
     author = {Kurt Hauschild and Wolfgang Rautenberg},
     title = {Entscheidungsprobleme der {Theorie} zweier {\"Aquivalenzrelationen} mit beschr\"ankter {Zahl} v{\cyro}n {Elementen} in den {Klassen}},
     journal = {Fundamenta Mathematicae},
     pages = {35--41},
     publisher = {mathdoc},
     volume = {81},
     number = {1},
     year = {1973},
     doi = {10.4064/fm-81-1-35-41},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-81-1-35-41/}
}