@article{MZ_1972__126_171730,
     author = {F.-J. Delvos and Walter Schempp},
     title = {On {Spline} {Systems:} {Lm-Splines.}},
     journal = {Mathematische Zeitschrift},
     pages = {154--170},
     publisher = {mathdoc},
     volume = {126},
     year = {1972},
     zbl = {0222.41006},
     url = {http://geodesic.mathdoc.fr/item/MZ_1972__126_171730/}
}