@phdthesis{THESE_1944__267__1_0,
     author = {Marrot, R.},
     title = {Sur l'\'equation int\'egrodiff\'erentielle de {Boltzmann}},
     series = {Th\`eses de l'entre-deux-guerres},
     year = {1944},
     number = {267},
     language = {fr},
     url = {https://www.numdam.org/item/THESE_1944__267__1_0/}
}