Analysis of information sources in references of the Wikipedia article "Delapan ribuan" in Indonesian language version.
Implied in text: ...Following Italian Silvio "Gnaro" Mondinelli last year and American Ed Viesturs in 2005, Ivan also became only the seventh mountaineer in the world to have done them all without supplementary oxygen.
...Ivan also became only the seventh mountaineer in the world to have done them all without supplementary oxygen.
...the American climber became one of only five men in the world to accomplish the quest entirely without supplementary oxygen.
Last year, Silvio 'Gnaro' Mondinelli broke the haunted 13 when he summited the last peak on his list of 14, 8000ers - becoming only the 6th mountaineer in the world to have bagged them all without supplementary oxygen.
13/07 interview with Silvio Mondinelli after the summit of his 14th 8000m peak without supplementary oxygen.
...the American climber became one of only five men in the world to accomplish the quest entirely without supplementary oxygen.
Last year, Silvio 'Gnaro' Mondinelli broke the haunted 13 when he summited the last peak on his list of 14, 8000ers - becoming only the 6th mountaineer in the world to have bagged them all without supplementary oxygen.
