@article{MOMA_1987__103_178315,
     author = {Gerhard Behrendt},
     title = {Equivalence {Systems} with {Finitely} {Many} {Relations.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {77--84},
     publisher = {mathdoc},
     volume = {103},
     year = {1987},
     zbl = {0606.08002},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1987__103_178315/}
}