Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
HUTCHINSON M. F.,A stochastic estimator of the trace of the influence matrix for laplacian smoothing splines,J. Commun. Statist. Simula.,,,1990,19,2,433-450,https://cir.nii.ac.jp/crid/1573668925763299072,