Pierre Duteurtre, who signed his work with Dut, had his first publication in l'As in 1937. With the exception of 'Petit Riquet Reporter' (Éditions N.B., 1948) and a short collaboration with the publishing house Artima, Dut spent the essential part of his career cooperating with the scenarist Marijac. Their first collaboration was in Le Coq Hardi in 1947 with part two of 'La Guerre de la Terre' (succeeding Auguste Liquois), soon followed by 'Sitting Bull', a western which they produced from 1948 until 1952.