%0 Journal Article %T Nonparametric matrix regression function estimation over symmetric positive definite matrices %A Bak, Kwan-Young %A Kim, Kwang-Rae %A Kim, Peter T. %A Koo, Ja-Yong %A Park, Changyi %A Zhu, Hongtu %J Journal of the Korean Statistical Society %V 50 %N 3 %P 795-817 %@ 1226-3192 %D 2021-09-01 %I Springer Singapore %~ DeepDyve