@article{Eilers2010,
author = {Eilers, P.  and Marx, B. },
title= {Splines, knots, and penalties},
year = {2010},
doi = {10.1002/wics.125},
journal = {Wiley Interdisciplinary Reviews: Computational Statistics},
volume = {2},
number = {6},
pages = {637--653},
}