Filippo de Filippi
Karakoram and Western Himalaya: An Account of the Expedition of H.R.H. the Duke of the Abruzzi
Archibald Constable and Co.
In 1912, Filippo de Filippi published the official account of the Duke of the Abruzzi’s 1909 expedition to K2. Though the group did not summit the peak, they identified the southeast ridge as the most likely path up the mountain. This path was later named the Abruzzi Ridge and was the route by which the summit was first reached, by Ardito Desio, in 1954.