The claim that a breached space helmet causes rapid depressurization and unconsciousness is a matter of basic physics and human physiology, requiring no specific citation.
The provided papers discuss various topics in space health, life support, and suit design (such as water accumulation in helmets and medical risks), but none specifically study or test helmet breaches leading to depressurization. However, the claim is a direct consequence of standard gas laws and physiological response to a vacuum (loss of ambient pressure causing rapid anoxia and unconsciousness), making it a matter of common knowledge and everyday scientific understanding.