[
  {
    "title": "Least Squares Sparse Principal Component Analysis: a Backward Elimination approach to attain large loadings",
    "author": [
      {
        "given": "Giovanni Maria",
        "family": "Merola",
        "role": {},
        "email": {},
        "comment": {}
      }
    ],
    "journal": "Australia & New Zealand Journal of Statistics",
    "year": "2015",
    "volume": "57",
    "pages": "391--429",
    "doi": "10.1111/anzs.12128"
  },
  {
    "title": "Projection sparse principal component analysis: An efficient least squares method",
    "author": [
      {
        "given": "Giovanni Maria",
        "family": "Merola",
        "role": {},
        "email": {},
        "comment": {}
      },
      {
        "given": "Gemai",
        "family": "Chen",
        "role": {},
        "email": {},
        "comment": {}
      }
    ],
    "journal": "Journal of Multivariate Analysis",
    "year": "2019",
    "volume": "173",
    "pages": "366--382",
    "doi": "10.1016/j.jmva.2019.04.001"
  }
]