https://www.fireengineering.com/firefighter-training/the-ups-and-downs-of-understanding-high-rise-stairwells/
from 2021 - approx 5 page article -- You received this message because you are subscribed to the Google Groups "massfire" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/massfire/CAFXWwKbKRwXD-z%3Dsa73xihyjJ4nMhyMRQbLOfnzrEA-y6CuByw%40mail.gmail.com.
