[
  {
    "path": "barcelona.jpg",
    "license": "CC-BY-SA-4.0",
    "authors": [
      "CLIGNER"
    ],
    "sources": [
      "https://commons.wikimedia.org/wiki/File:Gama_racores_UNE23400_ligatura.JPG"
    ]
  },
  {
    "path": "storz.jpg",
    "license": "CC-BY-SA-4.0",
    "authors": [
      "Karl Gruber"
    ],
    "sources": [
      "https://commons.wikimedia.org/wiki/File:Festkupplung.jpg"
    ]
  }
]