@phdthesis{BJHTUP11_1981__0102__P0_0,
     author = {David, Guy},
     title = {Courbes de {Lavrentiev} et int\'egrales singuli\`eres},
     series = {Th\`eses d'Orsay},
     publisher = {Universit\'e de Paris-Sud Centre d'Orsay},
     number = {102},
     year = {1981},
     language = {fr},
     url = {http://www.numdam.org/item/BJHTUP11_1981__0102__P0_0/}
}