@article{MOMA_1970__74_177521,
     author = {W. Schempp and F.J. Delvos},
     title = {On {Spline} {Systems.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {399--409},
     publisher = {mathdoc},
     volume = {74},
     year = {1970},
     zbl = {0203.12202},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1970__74_177521/}
}