### group-etudiants

#### GET /group/1/etudiants
```json
[
    {
        "civilite": "X",
        "civilite_etat_civil": "X",
        "code_ine": "INE1",
        "code_nip": "1",
        "dept_id": 1,
        "id": 1,
        "nom": "COSTA",
        "nom_usuel": null,
        "prenom": "SACHA",
        "prenom_etat_civil": "",
        "sort_key": [
            "costa",
            "sacha"
        ]
    },
    {
        "civilite": "F",
        "civilite_etat_civil": "X",
        "code_ine": "2",
        "code_nip": "NIP2",
        "dept_id": 1,
        "id": 2,
        "nom": "NAUDIN",
        "nom_usuel": null,
        "prenom": "SIMONE",
        "prenom_etat_civil": "",
        "sort_key": [
            "naudin",
            "simone"
        ]
    },
    "..."
]
```