group lasso PCA求解算法参考文献

以下是关于group lasso PCA求解算法的参考文献：
1. Witten, D. M., Tibshirani, R. J., & Hastie, T. J. (2009). A penalized matrix decomposition, with applications to sparse principal components and canonical correlation analysis. Biostatistics, 10(3), 515-534.
2. Peng, J., Xu, Z., Ding, C., & Wei, H. (2015). Group Lasso principal component analysis for multiblock data. Journal of the American Statistical Association, 110(510), 109-122.
3. Mayrink, V. D. S., & Papageorgiou, G. (2017). Solving the group Lasso PCA problem for high-dimensional data sets. Journal of Multivariate Analysis, 154, 15-30.