@phdthesis{THESE_1923__42__1_0,
     author = {Porchet, Marcel},
     title = {\'Etude sur l'\'ecoulement souterrain des eaux},
     series = {Th\`eses de l'entre-deux-guerres},
     number = {42},
     year = {1923},
     language = {fr},
     url = {http://archive.numdam.org/item/THESE_1923__42__1_0/}
}