Columbia subject headings:
Harvard subject headings:
Gas flow.
Gases, Asphyxiating and poisonous--Mathematical models.
Gases, Asphyxiating and poisonous--War use.
Plumes (Fluid dynamics)
Princeton subject headings:
Gas flow.
Gases, Asphyxiating and poisonous--Mathematical models.
Gases, Asphyxiating and poisonous--War use.
Plumes (Fluid dynamics)