@article{JMLR:v26:18-073,
  author  = {Dan Yang and Jianlong Shao and Haipeng Shen and Hongtu Zhu},
  title   = {Optimal Functional Bilinear Regression with Two-dimensional Functional Covariates via Reproducing Kernel Hilbert Space},
  journal = {Journal of Machine Learning Research},
  year    = {2025},
  volume  = {26},
  number  = {270},
  pages   = {1--52},
  url     = {http://jmlr.org/papers/v26/18-073.html}
}