For anyone not aware of the situation, this is not an official NASA report. It's something that an intern at NASA did on his free time with a couple buddies. Unfortunately, he put down his NASA affiliation on it and now everyone thinks NASA is wasting their taxpayer dollars on this. You can read the guy's own words about this paper here.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.