"Aeronautics Ascensions, flights, etc., 1926." . . "Arctique" . . . . . . . . . . . . . . . "The first flight across the Polar Sea"@en . . . "The first flight across the polar sea : with additional chapters" . . . . . "The first flight across the polar sea" . "The first flight across the polar sea"@en . . "The First Flight across the Polar Sea ... With additional chapters [by various authors] ... With 39 illustrations and a chart"@en . . . . . . "Arctic regions." . . "Vols transocéaniques Arctique, Océan." . . "Arctic expeditions, 1926." . .