@article{NUMA_1989__56_2-3_133400,
     author = {Georgi R. Grozev},
     title = {Comparison {Theorems} for {L-Monosplines} of {Minimal} {Norm.}},
     journal = {Numerische Mathematik},
     pages = {331--344},
     publisher = {mathdoc},
     volume = {56},
     number = {2-3},
     year = {1989},
     zbl = {0678.41007},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1989__56_2-3_133400/}
}